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Finding the Third Proportional to 20,432.25 and 28,913.63

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Solution

The third proportional to 20,432.25 and 28,913.63 is: 40,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.25 : 28,913.63 = 28,913.63 : x
  2. Step 2: Convert to fraction form
    20,432.25/28,913.63 = 28,913.63/x
  3. Step 3: Cross multiply
    20,432.25x = 28,913.63 × 28,913.63
  4. Step 4: Simplify right side
    20,432.25x = 835,997,710.64
  5. Step 5: Solve for x
    x = 835,997,710.64/20,432.25
  6. Step 6: Final answer
    x = 40,915.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.