Home / 31,731.55-47,610.38-13,953.06

Finding the Fourth Proportional to 31,731.55, 47,610.38 and 13,953.06

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Solution

The fourth proportional to 31,731.55, 47,610.38 and 13,953.06 is: 20,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.55 : 47,610.38 = 13,953.06 : x
  2. Step 2: Convert to fraction form
    31,731.55/47,610.38 = 13,953.06/x
  3. Step 3: Cross multiply
    31,731.55x = 47,610.38 × 13,953.06
  4. Step 4: Simplify right side
    31,731.55x = 664,310,523.65
  5. Step 5: Solve for x
    x = 664,310,523.65/31,731.55
  6. Step 6: Final answer
    x = 20,935.33

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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.