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Finding the Fourth Proportional to 20,006.97, 30,014.40 and 16,742.88

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Solution

The fourth proportional to 20,006.97, 30,014.40 and 16,742.88 is: 25,117.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.97 : 30,014.40 = 16,742.88 : x
  2. Step 2: Convert to fraction form
    20,006.97/30,014.40 = 16,742.88/x
  3. Step 3: Cross multiply
    20,006.97x = 30,014.40 × 16,742.88
  4. Step 4: Simplify right side
    20,006.97x = 502,527,497.47
  5. Step 5: Solve for x
    x = 502,527,497.47/20,006.97
  6. Step 6: Final answer
    x = 25,117.62

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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.