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Finding the Fourth Proportional to 30,471.67, 45,708.51 and 10,480.96

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Solution

The fourth proportional to 30,471.67, 45,708.51 and 10,480.96 is: 15,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,471.67 : 45,708.51 = 10,480.96 : x
  2. Step 2: Convert to fraction form
    30,471.67/45,708.51 = 10,480.96/x
  3. Step 3: Cross multiply
    30,471.67x = 45,708.51 × 10,480.96
  4. Step 4: Simplify right side
    30,471.67x = 479,069,064.97
  5. Step 5: Solve for x
    x = 479,069,064.97/30,471.67
  6. Step 6: Final answer
    x = 15,721.79

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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.