Home / 38,423.79-53,025.05-21,429.10

Finding the Fourth Proportional to 38,423.79, 53,025.05 and 21,429.10

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Solution

The fourth proportional to 38,423.79, 53,025.05 and 21,429.10 is: 29,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423.79 : 53,025.05 = 21,429.10 : x
  2. Step 2: Convert to fraction form
    38,423.79/53,025.05 = 21,429.10/x
  3. Step 3: Cross multiply
    38,423.79x = 53,025.05 × 21,429.10
  4. Step 4: Simplify right side
    38,423.79x = 1,136,279,098.96
  5. Step 5: Solve for x
    x = 1,136,279,098.96/38,423.79
  6. Step 6: Final answer
    x = 29,572.28

Related Problems

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Half scale
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Double scale
Find fourth proportional to 38,424.79, 53,026.43 and 21,430.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.