Home / 31,855.71-47,816.76-31,140.96

Finding the Fourth Proportional to 31,855.71, 47,816.76 and 31,140.96

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Solution

The fourth proportional to 31,855.71, 47,816.76 and 31,140.96 is: 46,743.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.71 : 47,816.76 = 31,140.96 : x
  2. Step 2: Convert to fraction form
    31,855.71/47,816.76 = 31,140.96/x
  3. Step 3: Cross multiply
    31,855.71x = 47,816.76 × 31,140.96
  4. Step 4: Simplify right side
    31,855.71x = 1,489,059,747.96
  5. Step 5: Solve for x
    x = 1,489,059,747.96/31,855.71
  6. Step 6: Final answer
    x = 46,743.88

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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.