Home / 40,691.04-60,932.88-19,860

Finding the Fourth Proportional to 40,691.04, 60,932.88 and 19,860

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Solution

The fourth proportional to 40,691.04, 60,932.88 and 19,860 is: 29,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,691.04 : 60,932.88 = 19,860 : x
  2. Step 2: Convert to fraction form
    40,691.04/60,932.88 = 19,860/x
  3. Step 3: Cross multiply
    40,691.04x = 60,932.88 × 19,860
  4. Step 4: Simplify right side
    40,691.04x = 1,210,126,996.80
  5. Step 5: Solve for x
    x = 1,210,126,996.80/40,691.04
  6. Step 6: Final answer
    x = 29,739.40

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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.