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Finding the Fourth Proportional to 28,011.26, 42,016.89 and 7,234.76

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Solution

The fourth proportional to 28,011.26, 42,016.89 and 7,234.76 is: 10,852.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.26 : 42,016.89 = 7,234.76 : x
  2. Step 2: Convert to fraction form
    28,011.26/42,016.89 = 7,234.76/x
  3. Step 3: Cross multiply
    28,011.26x = 42,016.89 × 7,234.76
  4. Step 4: Simplify right side
    28,011.26x = 303,982,115.10
  5. Step 5: Solve for x
    x = 303,982,115.10/28,011.26
  6. Step 6: Final answer
    x = 10,852.14

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Half scale
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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.