Home / 31,729.44-47,542.24-19,211.55

Finding the Fourth Proportional to 31,729.44, 47,542.24 and 19,211.55

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Solution

The fourth proportional to 31,729.44, 47,542.24 and 19,211.55 is: 28,785.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.44 : 47,542.24 = 19,211.55 : x
  2. Step 2: Convert to fraction form
    31,729.44/47,542.24 = 19,211.55/x
  3. Step 3: Cross multiply
    31,729.44x = 47,542.24 × 19,211.55
  4. Step 4: Simplify right side
    31,729.44x = 913,359,966.60
  5. Step 5: Solve for x
    x = 913,359,966.60/31,729.44
  6. Step 6: Final answer
    x = 28,785.89

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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.