Home / 18,325.89-25,267.55-15,488.25

Finding the Fourth Proportional to 18,325.89, 25,267.55 and 15,488.25

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Solution

The fourth proportional to 18,325.89, 25,267.55 and 15,488.25 is: 21,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.89 : 25,267.55 = 15,488.25 : x
  2. Step 2: Convert to fraction form
    18,325.89/25,267.55 = 15,488.25/x
  3. Step 3: Cross multiply
    18,325.89x = 25,267.55 × 15,488.25
  4. Step 4: Simplify right side
    18,325.89x = 391,350,053.85
  5. Step 5: Solve for x
    x = 391,350,053.85/18,325.89
  6. Step 6: Final answer
    x = 21,355.04

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.