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Finding the Fourth Proportional to 30,061.56, 45,092.30 and 12,057.92

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Solution

The fourth proportional to 30,061.56, 45,092.30 and 12,057.92 is: 18,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,061.56 : 45,092.30 = 12,057.92 : x
  2. Step 2: Convert to fraction form
    30,061.56/45,092.30 = 12,057.92/x
  3. Step 3: Cross multiply
    30,061.56x = 45,092.30 × 12,057.92
  4. Step 4: Simplify right side
    30,061.56x = 543,719,150.70
  5. Step 5: Solve for x
    x = 543,719,150.70/30,061.56
  6. Step 6: Final answer
    x = 18,086.86

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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.