Home / 22,191.44-30,624.39-12,630.85

Finding the Fourth Proportional to 22,191.44, 30,624.39 and 12,630.85

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Solution

The fourth proportional to 22,191.44, 30,624.39 and 12,630.85 is: 17,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,191.44 : 30,624.39 = 12,630.85 : x
  2. Step 2: Convert to fraction form
    22,191.44/30,624.39 = 12,630.85/x
  3. Step 3: Cross multiply
    22,191.44x = 30,624.39 × 12,630.85
  4. Step 4: Simplify right side
    22,191.44x = 386,812,121.42
  5. Step 5: Solve for x
    x = 386,812,121.42/22,191.44
  6. Step 6: Final answer
    x = 17,430.69

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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.