Home / 42,145.92-63,221.31-15,850.89

Finding the Fourth Proportional to 42,145.92, 63,221.31 and 15,850.89

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Solution

The fourth proportional to 42,145.92, 63,221.31 and 15,850.89 is: 23,777.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,145.92 : 63,221.31 = 15,850.89 : x
  2. Step 2: Convert to fraction form
    42,145.92/63,221.31 = 15,850.89/x
  3. Step 3: Cross multiply
    42,145.92x = 63,221.31 × 15,850.89
  4. Step 4: Simplify right side
    42,145.92x = 1,002,114,030.47
  5. Step 5: Solve for x
    x = 1,002,114,030.47/42,145.92
  6. Step 6: Final answer
    x = 23,777.25

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1.5x scale

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.