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Finding the Fourth Proportional to 22,920.60, 34,373.76 and 8,879.64

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Solution

The fourth proportional to 22,920.60, 34,373.76 and 8,879.64 is: 13,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,920.60 : 34,373.76 = 8,879.64 : x
  2. Step 2: Convert to fraction form
    22,920.60/34,373.76 = 8,879.64/x
  3. Step 3: Cross multiply
    22,920.60x = 34,373.76 × 8,879.64
  4. Step 4: Simplify right side
    22,920.60x = 305,226,614.25
  5. Step 5: Solve for x
    x = 305,226,614.25/22,920.60
  6. Step 6: Final answer
    x = 13,316.69

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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.