Home / 31,868.96-47,729.28-30,761.60

Finding the Fourth Proportional to 31,868.96, 47,729.28 and 30,761.60

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Solution

The fourth proportional to 31,868.96, 47,729.28 and 30,761.60 is: 46,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.96 : 47,729.28 = 30,761.60 : x
  2. Step 2: Convert to fraction form
    31,868.96/47,729.28 = 30,761.60/x
  3. Step 3: Cross multiply
    31,868.96x = 47,729.28 × 30,761.60
  4. Step 4: Simplify right side
    31,868.96x = 1,468,229,019.65
  5. Step 5: Solve for x
    x = 1,468,229,019.65/31,868.96
  6. Step 6: Final answer
    x = 46,070.82

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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.