Home / 20,924,460-28,887,593.76-13,588,853.76

Finding the Fourth Proportional to 20,924,460, 28,887,593.76 and 13,588,853.76

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Solution

The fourth proportional to 20,924,460, 28,887,593.76 and 13,588,853.76 is: 18,760,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924,460 : 28,887,593.76 = 13,588,853.76 : x
  2. Step 2: Convert to fraction form
    20,924,460/28,887,593.76 = 13,588,853.76/x
  3. Step 3: Cross multiply
    20,924,460x = 28,887,593.76 × 13,588,853.76
  4. Step 4: Simplify right side
    20,924,460x = 392,549,287,082,928.56
  5. Step 5: Solve for x
    x = 392,549,287,082,928.56/20,924,460
  6. Step 6: Final answer
    x = 18,760,306.70

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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.