Home / 42,147.87-63,252.90-19,961.20

Finding the Fourth Proportional to 42,147.87, 63,252.90 and 19,961.20

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Solution

The fourth proportional to 42,147.87, 63,252.90 and 19,961.20 is: 29,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,147.87 : 63,252.90 = 19,961.20 : x
  2. Step 2: Convert to fraction form
    42,147.87/63,252.90 = 19,961.20/x
  3. Step 3: Cross multiply
    42,147.87x = 63,252.90 × 19,961.20
  4. Step 4: Simplify right side
    42,147.87x = 1,262,603,866.55
  5. Step 5: Solve for x
    x = 1,262,603,866.55/42,147.87
  6. Step 6: Final answer
    x = 29,956.53

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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.