Home / 31,531.40-47,273.10-15,960.20

Finding the Fourth Proportional to 31,531.40, 47,273.10 and 15,960.20

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Solution

The fourth proportional to 31,531.40, 47,273.10 and 15,960.20 is: 23,928.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.40 : 47,273.10 = 15,960.20 : x
  2. Step 2: Convert to fraction form
    31,531.40/47,273.10 = 15,960.20/x
  3. Step 3: Cross multiply
    31,531.40x = 47,273.10 × 15,960.20
  4. Step 4: Simplify right side
    31,531.40x = 754,488,130.62
  5. Step 5: Solve for x
    x = 754,488,130.62/31,531.40
  6. Step 6: Final answer
    x = 23,928.15

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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.