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Finding the Fourth Proportional to 30,079.44, 45,123.96 and 10,353.12

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Solution

The fourth proportional to 30,079.44, 45,123.96 and 10,353.12 is: 15,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.44 : 45,123.96 = 10,353.12 : x
  2. Step 2: Convert to fraction form
    30,079.44/45,123.96 = 10,353.12/x
  3. Step 3: Cross multiply
    30,079.44x = 45,123.96 × 10,353.12
  4. Step 4: Simplify right side
    30,079.44x = 467,173,772.76
  5. Step 5: Solve for x
    x = 467,173,772.76/30,079.44
  6. Step 6: Final answer
    x = 15,531.33

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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.