Home / 31,543.70-47,221.02-30,422.15

Finding the Fourth Proportional to 31,543.70, 47,221.02 and 30,422.15

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Solution

The fourth proportional to 31,543.70, 47,221.02 and 30,422.15 is: 45,542.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.70 : 47,221.02 = 30,422.15 : x
  2. Step 2: Convert to fraction form
    31,543.70/47,221.02 = 30,422.15/x
  3. Step 3: Cross multiply
    31,543.70x = 47,221.02 × 30,422.15
  4. Step 4: Simplify right side
    31,543.70x = 1,436,564,717.49
  5. Step 5: Solve for x
    x = 1,436,564,717.49/31,543.70
  6. Step 6: Final answer
    x = 45,542.04

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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.