Home / 25,452.72-38,205-18,065.52

Finding the Fourth Proportional to 25,452.72, 38,205 and 18,065.52

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Solution

The fourth proportional to 25,452.72, 38,205 and 18,065.52 is: 27,116.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,452.72 : 38,205 = 18,065.52 : x
  2. Step 2: Convert to fraction form
    25,452.72/38,205 = 18,065.52/x
  3. Step 3: Cross multiply
    25,452.72x = 38,205 × 18,065.52
  4. Step 4: Simplify right side
    25,452.72x = 690,193,191.60
  5. Step 5: Solve for x
    x = 690,193,191.60/25,452.72
  6. Step 6: Final answer
    x = 27,116.68

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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.