Home / 42,122.16-63,215.88-15,850.80

Finding the Fourth Proportional to 42,122.16, 63,215.88 and 15,850.80

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Solution

The fourth proportional to 42,122.16, 63,215.88 and 15,850.80 is: 23,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,122.16 : 63,215.88 = 15,850.80 : x
  2. Step 2: Convert to fraction form
    42,122.16/63,215.88 = 15,850.80/x
  3. Step 3: Cross multiply
    42,122.16x = 63,215.88 × 15,850.80
  4. Step 4: Simplify right side
    42,122.16x = 1,002,022,270.70
  5. Step 5: Solve for x
    x = 1,002,022,270.70/42,122.16
  6. Step 6: Final answer
    x = 23,788.48

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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.