Home / 42,625.12-63,937.20-19,245.28

Finding the Fourth Proportional to 42,625.12, 63,937.20 and 19,245.28

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Solution

The fourth proportional to 42,625.12, 63,937.20 and 19,245.28 is: 28,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,625.12 : 63,937.20 = 19,245.28 : x
  2. Step 2: Convert to fraction form
    42,625.12/63,937.20 = 19,245.28/x
  3. Step 3: Cross multiply
    42,625.12x = 63,937.20 × 19,245.28
  4. Step 4: Simplify right side
    42,625.12x = 1,230,489,316.42
  5. Step 5: Solve for x
    x = 1,230,489,316.42/42,625.12
  6. Step 6: Final answer
    x = 28,867.70

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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.