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Finding the Fourth Proportional to 21,487.48, 32,223.02 and 8,338.14

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Solution

The fourth proportional to 21,487.48, 32,223.02 and 8,338.14 is: 12,504.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.48 : 32,223.02 = 8,338.14 : x
  2. Step 2: Convert to fraction form
    21,487.48/32,223.02 = 8,338.14/x
  3. Step 3: Cross multiply
    21,487.48x = 32,223.02 × 8,338.14
  4. Step 4: Simplify right side
    21,487.48x = 268,680,010.29
  5. Step 5: Solve for x
    x = 268,680,010.29/21,487.48
  6. Step 6: Final answer
    x = 12,504.03

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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.