Home / 21,514.55-29,673.65-15,565.91

Finding the Fourth Proportional to 21,514.55, 29,673.65 and 15,565.91

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Solution

The fourth proportional to 21,514.55, 29,673.65 and 15,565.91 is: 21,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.55 : 29,673.65 = 15,565.91 : x
  2. Step 2: Convert to fraction form
    21,514.55/29,673.65 = 15,565.91/x
  3. Step 3: Cross multiply
    21,514.55x = 29,673.65 × 15,565.91
  4. Step 4: Simplify right side
    21,514.55x = 461,897,365.27
  5. Step 5: Solve for x
    x = 461,897,365.27/21,514.55
  6. Step 6: Final answer
    x = 21,469.07

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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.