Home / 31,991.28-47,986.92-26,507.76

Finding the Fourth Proportional to 31,991.28, 47,986.92 and 26,507.76

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Solution

The fourth proportional to 31,991.28, 47,986.92 and 26,507.76 is: 39,761.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,991.28 : 47,986.92 = 26,507.76 : x
  2. Step 2: Convert to fraction form
    31,991.28/47,986.92 = 26,507.76/x
  3. Step 3: Cross multiply
    31,991.28x = 47,986.92 × 26,507.76
  4. Step 4: Simplify right side
    31,991.28x = 1,272,025,758.50
  5. Step 5: Solve for x
    x = 1,272,025,758.50/31,991.28
  6. Step 6: Final answer
    x = 39,761.64

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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.