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Finding the Fourth Proportional to 21,373.92, 32,066.78 and 8,899.80

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Solution

The fourth proportional to 21,373.92, 32,066.78 and 8,899.80 is: 13,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.92 : 32,066.78 = 8,899.80 : x
  2. Step 2: Convert to fraction form
    21,373.92/32,066.78 = 8,899.80/x
  3. Step 3: Cross multiply
    21,373.92x = 32,066.78 × 8,899.80
  4. Step 4: Simplify right side
    21,373.92x = 285,387,884.15
  5. Step 5: Solve for x
    x = 285,387,884.15/21,373.92
  6. Step 6: Final answer
    x = 13,352.15

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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.