Home / 31,717.72-47,544.18-20,646.64

Finding the Fourth Proportional to 31,717.72, 47,544.18 and 20,646.64

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Solution

The fourth proportional to 31,717.72, 47,544.18 and 20,646.64 is: 30,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,717.72 : 47,544.18 = 20,646.64 : x
  2. Step 2: Convert to fraction form
    31,717.72/47,544.18 = 20,646.64/x
  3. Step 3: Cross multiply
    31,717.72x = 47,544.18 × 20,646.64
  4. Step 4: Simplify right side
    31,717.72x = 981,627,568.56
  5. Step 5: Solve for x
    x = 981,627,568.56/31,717.72
  6. Step 6: Final answer
    x = 30,948.87

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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.