Home / 31,381.68-47,079.52-10,604.64

Finding the Fourth Proportional to 31,381.68, 47,079.52 and 10,604.64

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Solution

The fourth proportional to 31,381.68, 47,079.52 and 10,604.64 is: 15,909.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.68 : 47,079.52 = 10,604.64 : x
  2. Step 2: Convert to fraction form
    31,381.68/47,079.52 = 10,604.64/x
  3. Step 3: Cross multiply
    31,381.68x = 47,079.52 × 10,604.64
  4. Step 4: Simplify right side
    31,381.68x = 499,261,360.97
  5. Step 5: Solve for x
    x = 499,261,360.97/31,381.68
  6. Step 6: Final answer
    x = 15,909.33

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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.