Home / 39,404.07-54,377.96-21,499.16

Finding the Fourth Proportional to 39,404.07, 54,377.96 and 21,499.16

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Solution

The fourth proportional to 39,404.07, 54,377.96 and 21,499.16 is: 29,669.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,404.07 : 54,377.96 = 21,499.16 : x
  2. Step 2: Convert to fraction form
    39,404.07/54,377.96 = 21,499.16/x
  3. Step 3: Cross multiply
    39,404.07x = 54,377.96 × 21,499.16
  4. Step 4: Simplify right side
    39,404.07x = 1,169,080,083.13
  5. Step 5: Solve for x
    x = 1,169,080,083.13/39,404.07
  6. Step 6: Final answer
    x = 29,669.02

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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.