Home / 18,867.28-28,279.04-15,173.68

Finding the Fourth Proportional to 18,867.28, 28,279.04 and 15,173.68

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Solution

The fourth proportional to 18,867.28, 28,279.04 and 15,173.68 is: 22,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.28 : 28,279.04 = 15,173.68 : x
  2. Step 2: Convert to fraction form
    18,867.28/28,279.04 = 15,173.68/x
  3. Step 3: Cross multiply
    18,867.28x = 28,279.04 × 15,173.68
  4. Step 4: Simplify right side
    18,867.28x = 429,097,103.67
  5. Step 5: Solve for x
    x = 429,097,103.67/18,867.28
  6. Step 6: Final answer
    x = 22,742.92

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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.