Home / 42,932.20-64,390.92-11,342.60

Finding the Fourth Proportional to 42,932.20, 64,390.92 and 11,342.60

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Solution

The fourth proportional to 42,932.20, 64,390.92 and 11,342.60 is: 17,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,932.20 : 64,390.92 = 11,342.60 : x
  2. Step 2: Convert to fraction form
    42,932.20/64,390.92 = 11,342.60/x
  3. Step 3: Cross multiply
    42,932.20x = 64,390.92 × 11,342.60
  4. Step 4: Simplify right side
    42,932.20x = 730,360,449.19
  5. Step 5: Solve for x
    x = 730,360,449.19/42,932.20
  6. Step 6: Final answer
    x = 17,011.95

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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.