Home / 58,338.08-87,517.92-18,891.20

Finding the Fourth Proportional to 58,338.08, 87,517.92 and 18,891.20

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Solution

The fourth proportional to 58,338.08, 87,517.92 and 18,891.20 is: 28,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,338.08 : 87,517.92 = 18,891.20 : x
  2. Step 2: Convert to fraction form
    58,338.08/87,517.92 = 18,891.20/x
  3. Step 3: Cross multiply
    58,338.08x = 87,517.92 × 18,891.20
  4. Step 4: Simplify right side
    58,338.08x = 1,653,318,530.30
  5. Step 5: Solve for x
    x = 1,653,318,530.30/58,338.08
  6. Step 6: Final answer
    x = 28,340.30

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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.