Home / 25,587.11-38,333.90-18,549.68

Finding the Fourth Proportional to 25,587.11, 38,333.90 and 18,549.68

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Solution

The fourth proportional to 25,587.11, 38,333.90 and 18,549.68 is: 27,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,587.11 : 38,333.90 = 18,549.68 : x
  2. Step 2: Convert to fraction form
    25,587.11/38,333.90 = 18,549.68/x
  3. Step 3: Cross multiply
    25,587.11x = 38,333.90 × 18,549.68
  4. Step 4: Simplify right side
    25,587.11x = 711,081,432.86
  5. Step 5: Solve for x
    x = 711,081,432.86/25,587.11
  6. Step 6: Final answer
    x = 27,790.61

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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.