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Finding the Fourth Proportional to 20,007.97, 30,015.90 and 16,743.88

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Solution

The fourth proportional to 20,007.97, 30,015.90 and 16,743.88 is: 25,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.97 : 30,015.90 = 16,743.88 : x
  2. Step 2: Convert to fraction form
    20,007.97/30,015.90 = 16,743.88/x
  3. Step 3: Cross multiply
    20,007.97x = 30,015.90 × 16,743.88
  4. Step 4: Simplify right side
    20,007.97x = 502,582,627.69
  5. Step 5: Solve for x
    x = 502,582,627.69/20,007.97
  6. Step 6: Final answer
    x = 25,119.12

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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.