Home / 29,207.29-40,306.10-15,778.54

Finding the Fourth Proportional to 29,207.29, 40,306.10 and 15,778.54

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Solution

The fourth proportional to 29,207.29, 40,306.10 and 15,778.54 is: 21,774.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,207.29 : 40,306.10 = 15,778.54 : x
  2. Step 2: Convert to fraction form
    29,207.29/40,306.10 = 15,778.54/x
  3. Step 3: Cross multiply
    29,207.29x = 40,306.10 × 15,778.54
  4. Step 4: Simplify right side
    29,207.29x = 635,971,411.09
  5. Step 5: Solve for x
    x = 635,971,411.09/29,207.29
  6. Step 6: Final answer
    x = 21,774.41

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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.