Home / 38,651.97-57,977.20-12,356.69

Finding the Fourth Proportional to 38,651.97, 57,977.20 and 12,356.69

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Solution

The fourth proportional to 38,651.97, 57,977.20 and 12,356.69 is: 18,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,651.97 : 57,977.20 = 12,356.69 : x
  2. Step 2: Convert to fraction form
    38,651.97/57,977.20 = 12,356.69/x
  3. Step 3: Cross multiply
    38,651.97x = 57,977.20 × 12,356.69
  4. Step 4: Simplify right side
    38,651.97x = 716,406,287.47
  5. Step 5: Solve for x
    x = 716,406,287.47/38,651.97
  6. Step 6: Final answer
    x = 18,534.79

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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.