Home / 31,718.88-47,527.29-20,652.66

Finding the Fourth Proportional to 31,718.88, 47,527.29 and 20,652.66

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Solution

The fourth proportional to 31,718.88, 47,527.29 and 20,652.66 is: 30,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.88 : 47,527.29 = 20,652.66 : x
  2. Step 2: Convert to fraction form
    31,718.88/47,527.29 = 20,652.66/x
  3. Step 3: Cross multiply
    31,718.88x = 47,527.29 × 20,652.66
  4. Step 4: Simplify right side
    31,718.88x = 981,564,961.09
  5. Step 5: Solve for x
    x = 981,564,961.09/31,718.88
  6. Step 6: Final answer
    x = 30,945.76

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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.