Home / 43,691.28-65,536.86-12,526.50

Finding the Fourth Proportional to 43,691.28, 65,536.86 and 12,526.50

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Solution

The fourth proportional to 43,691.28, 65,536.86 and 12,526.50 is: 18,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,691.28 : 65,536.86 = 12,526.50 : x
  2. Step 2: Convert to fraction form
    43,691.28/65,536.86 = 12,526.50/x
  3. Step 3: Cross multiply
    43,691.28x = 65,536.86 × 12,526.50
  4. Step 4: Simplify right side
    43,691.28x = 820,947,476.79
  5. Step 5: Solve for x
    x = 820,947,476.79/43,691.28
  6. Step 6: Final answer
    x = 18,789.73

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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.