Home / 39,402.28-54,375.06-21,497.29

Finding the Fourth Proportional to 39,402.28, 54,375.06 and 21,497.29

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Solution

The fourth proportional to 39,402.28, 54,375.06 and 21,497.29 is: 29,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,402.28 : 54,375.06 = 21,497.29 : x
  2. Step 2: Convert to fraction form
    39,402.28/54,375.06 = 21,497.29/x
  3. Step 3: Cross multiply
    39,402.28x = 54,375.06 × 21,497.29
  4. Step 4: Simplify right side
    39,402.28x = 1,168,916,623.27
  5. Step 5: Solve for x
    x = 1,168,916,623.27/39,402.28
  6. Step 6: Final answer
    x = 29,666.22

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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.