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Finding the Fourth Proportional to 30,073.73, 45,121.05 and 13,432.14

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Solution

The fourth proportional to 30,073.73, 45,121.05 and 13,432.14 is: 20,152.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,073.73 : 45,121.05 = 13,432.14 : x
  2. Step 2: Convert to fraction form
    30,073.73/45,121.05 = 13,432.14/x
  3. Step 3: Cross multiply
    30,073.73x = 45,121.05 × 13,432.14
  4. Step 4: Simplify right side
    30,073.73x = 606,072,260.55
  5. Step 5: Solve for x
    x = 606,072,260.55/30,073.73
  6. Step 6: Final answer
    x = 20,152.88

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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.