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Finding the Third Proportional to 15,420.38 and 33,387.19

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Solution

The third proportional to 15,420.38 and 33,387.19 is: 72,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.38 : 33,387.19 = 33,387.19 : x
  2. Step 2: Convert to fraction form
    15,420.38/33,387.19 = 33,387.19/x
  3. Step 3: Cross multiply
    15,420.38x = 33,387.19 × 33,387.19
  4. Step 4: Simplify right side
    15,420.38x = 1,114,704,289.16
  5. Step 5: Solve for x
    x = 1,114,704,289.16/15,420.38
  6. Step 6: Final answer
    x = 72,287.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.