Home / 38,424.03-53,025.36-21,429.30

Finding the Fourth Proportional to 38,424.03, 53,025.36 and 21,429.30

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Solution

The fourth proportional to 38,424.03, 53,025.36 and 21,429.30 is: 29,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,424.03 : 53,025.36 = 21,429.30 : x
  2. Step 2: Convert to fraction form
    38,424.03/53,025.36 = 21,429.30/x
  3. Step 3: Cross multiply
    38,424.03x = 53,025.36 × 21,429.30
  4. Step 4: Simplify right side
    38,424.03x = 1,136,296,347.05
  5. Step 5: Solve for x
    x = 1,136,296,347.05/38,424.03
  6. Step 6: Final answer
    x = 29,572.54

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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.