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Finding the Fourth Proportional to 21,504.26, 32,248.08 and 8,354.90

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Solution

The fourth proportional to 21,504.26, 32,248.08 and 8,354.90 is: 12,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.26 : 32,248.08 = 8,354.90 : x
  2. Step 2: Convert to fraction form
    21,504.26/32,248.08 = 8,354.90/x
  3. Step 3: Cross multiply
    21,504.26x = 32,248.08 × 8,354.90
  4. Step 4: Simplify right side
    21,504.26x = 269,429,483.59
  5. Step 5: Solve for x
    x = 269,429,483.59/21,504.26
  6. Step 6: Final answer
    x = 12,529.12

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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.