Home / 42,579.12-63,876.20-17,605.18

Finding the Fourth Proportional to 42,579.12, 63,876.20 and 17,605.18

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Solution

The fourth proportional to 42,579.12, 63,876.20 and 17,605.18 is: 26,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,579.12 : 63,876.20 = 17,605.18 : x
  2. Step 2: Convert to fraction form
    42,579.12/63,876.20 = 17,605.18/x
  3. Step 3: Cross multiply
    42,579.12x = 63,876.20 × 17,605.18
  4. Step 4: Simplify right side
    42,579.12x = 1,124,551,990.54
  5. Step 5: Solve for x
    x = 1,124,551,990.54/42,579.12
  6. Step 6: Final answer
    x = 26,410.88

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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.