Home / 42,012.32-63,011.12-15,711.62

Finding the Fourth Proportional to 42,012.32, 63,011.12 and 15,711.62

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Solution

The fourth proportional to 42,012.32, 63,011.12 and 15,711.62 is: 23,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,012.32 : 63,011.12 = 15,711.62 : x
  2. Step 2: Convert to fraction form
    42,012.32/63,011.12 = 15,711.62/x
  3. Step 3: Cross multiply
    42,012.32x = 63,011.12 × 15,711.62
  4. Step 4: Simplify right side
    42,012.32x = 990,006,773.21
  5. Step 5: Solve for x
    x = 990,006,773.21/42,012.32
  6. Step 6: Final answer
    x = 23,564.68

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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.