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Finding the Fourth Proportional to 23,104.80, 34,624.80 and 20,318.40

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Solution

The fourth proportional to 23,104.80, 34,624.80 and 20,318.40 is: 30,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,104.80 : 34,624.80 = 20,318.40 : x
  2. Step 2: Convert to fraction form
    23,104.80/34,624.80 = 20,318.40/x
  3. Step 3: Cross multiply
    23,104.80x = 34,624.80 × 20,318.40
  4. Step 4: Simplify right side
    23,104.80x = 703,520,536.32
  5. Step 5: Solve for x
    x = 703,520,536.32/23,104.80
  6. Step 6: Final answer
    x = 30,449.11

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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.