Home / 38,423.20-53,022.96-21,427.96

Finding the Fourth Proportional to 38,423.20, 53,022.96 and 21,427.96

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Solution

The fourth proportional to 38,423.20, 53,022.96 and 21,427.96 is: 29,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423.20 : 53,022.96 = 21,427.96 : x
  2. Step 2: Convert to fraction form
    38,423.20/53,022.96 = 21,427.96/x
  3. Step 3: Cross multiply
    38,423.20x = 53,022.96 × 21,427.96
  4. Step 4: Simplify right side
    38,423.20x = 1,136,173,865.96
  5. Step 5: Solve for x
    x = 1,136,173,865.96/38,423.20
  6. Step 6: Final answer
    x = 29,570.00

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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.