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Finding the Fourth Proportional to 21,988.88, 32,967 and 10,295.12

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Solution

The fourth proportional to 21,988.88, 32,967 and 10,295.12 is: 15,435.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.88 : 32,967 = 10,295.12 : x
  2. Step 2: Convert to fraction form
    21,988.88/32,967 = 10,295.12/x
  3. Step 3: Cross multiply
    21,988.88x = 32,967 × 10,295.12
  4. Step 4: Simplify right side
    21,988.88x = 339,399,221.04
  5. Step 5: Solve for x
    x = 339,399,221.04/21,988.88
  6. Step 6: Final answer
    x = 15,435.04

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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.