Home / 21,454.04-29,593.68-15,498.92

Finding the Fourth Proportional to 21,454.04, 29,593.68 and 15,498.92

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Solution

The fourth proportional to 21,454.04, 29,593.68 and 15,498.92 is: 21,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.04 : 29,593.68 = 15,498.92 : x
  2. Step 2: Convert to fraction form
    21,454.04/29,593.68 = 15,498.92/x
  3. Step 3: Cross multiply
    21,454.04x = 29,593.68 × 15,498.92
  4. Step 4: Simplify right side
    21,454.04x = 458,670,078.83
  5. Step 5: Solve for x
    x = 458,670,078.83/21,454.04
  6. Step 6: Final answer
    x = 21,379.19

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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.