Home / 42,449.82-63,700.25-15,815.40

Finding the Fourth Proportional to 42,449.82, 63,700.25 and 15,815.40

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Solution

The fourth proportional to 42,449.82, 63,700.25 and 15,815.40 is: 23,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,449.82 : 63,700.25 = 15,815.40 : x
  2. Step 2: Convert to fraction form
    42,449.82/63,700.25 = 15,815.40/x
  3. Step 3: Cross multiply
    42,449.82x = 63,700.25 × 15,815.40
  4. Step 4: Simplify right side
    42,449.82x = 1,007,444,933.85
  5. Step 5: Solve for x
    x = 1,007,444,933.85/42,449.82
  6. Step 6: Final answer
    x = 23,732.61

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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.