Home / 18,934.53-28,419.42-9,581.20

Finding the Fourth Proportional to 18,934.53, 28,419.42 and 9,581.20

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Solution

The fourth proportional to 18,934.53, 28,419.42 and 9,581.20 is: 14,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.53 : 28,419.42 = 9,581.20 : x
  2. Step 2: Convert to fraction form
    18,934.53/28,419.42 = 9,581.20/x
  3. Step 3: Cross multiply
    18,934.53x = 28,419.42 × 9,581.20
  4. Step 4: Simplify right side
    18,934.53x = 272,292,271.64
  5. Step 5: Solve for x
    x = 272,292,271.64/18,934.53
  6. Step 6: Final answer
    x = 14,380.73

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1.5x scale

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.