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Finding the Fourth Proportional to 20,000.07, 29,977.02 and 7,512.11

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Solution

The fourth proportional to 20,000.07, 29,977.02 and 7,512.11 is: 11,259.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.07 : 29,977.02 = 7,512.11 : x
  2. Step 2: Convert to fraction form
    20,000.07/29,977.02 = 7,512.11/x
  3. Step 3: Cross multiply
    20,000.07x = 29,977.02 × 7,512.11
  4. Step 4: Simplify right side
    20,000.07x = 225,190,671.71
  5. Step 5: Solve for x
    x = 225,190,671.71/20,000.07
  6. Step 6: Final answer
    x = 11,259.49

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Double scale
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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.