Home / 29,902.72-40,966.91-28,781.68

Finding the Fourth Proportional to 29,902.72, 40,966.91 and 28,781.68

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Solution

The fourth proportional to 29,902.72, 40,966.91 and 28,781.68 is: 39,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,902.72 : 40,966.91 = 28,781.68 : x
  2. Step 2: Convert to fraction form
    29,902.72/40,966.91 = 28,781.68/x
  3. Step 3: Cross multiply
    29,902.72x = 40,966.91 × 28,781.68
  4. Step 4: Simplify right side
    29,902.72x = 1,179,096,494.21
  5. Step 5: Solve for x
    x = 1,179,096,494.21/29,902.72
  6. Step 6: Final answer
    x = 39,431.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.