Home / 25,587.31-38,334.20-18,549.87

Finding the Fourth Proportional to 25,587.31, 38,334.20 and 18,549.87

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Solution

The fourth proportional to 25,587.31, 38,334.20 and 18,549.87 is: 27,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,587.31 : 38,334.20 = 18,549.87 : x
  2. Step 2: Convert to fraction form
    25,587.31/38,334.20 = 18,549.87/x
  3. Step 3: Cross multiply
    25,587.31x = 38,334.20 × 18,549.87
  4. Step 4: Simplify right side
    25,587.31x = 711,094,426.55
  5. Step 5: Solve for x
    x = 711,094,426.55/25,587.31
  6. Step 6: Final answer
    x = 27,790.90

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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.