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Finding the Fourth Proportional to 20,006.70, 30,010.05 and 17,760.30

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Solution

The fourth proportional to 20,006.70, 30,010.05 and 17,760.30 is: 26,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.70 : 30,010.05 = 17,760.30 : x
  2. Step 2: Convert to fraction form
    20,006.70/30,010.05 = 17,760.30/x
  3. Step 3: Cross multiply
    20,006.70x = 30,010.05 × 17,760.30
  4. Step 4: Simplify right side
    20,006.70x = 532,987,491.02
  5. Step 5: Solve for x
    x = 532,987,491.02/20,006.70
  6. Step 6: Final answer
    x = 26,640.45

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Similar ratio
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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.