Home / 21,251.08-31,841.14-15,000.86

Finding the Fourth Proportional to 21,251.08, 31,841.14 and 15,000.86

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Solution

The fourth proportional to 21,251.08, 31,841.14 and 15,000.86 is: 22,476.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251.08 : 31,841.14 = 15,000.86 : x
  2. Step 2: Convert to fraction form
    21,251.08/31,841.14 = 15,000.86/x
  3. Step 3: Cross multiply
    21,251.08x = 31,841.14 × 15,000.86
  4. Step 4: Simplify right side
    21,251.08x = 477,644,483.38
  5. Step 5: Solve for x
    x = 477,644,483.38/21,251.08
  6. Step 6: Final answer
    x = 22,476.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.