Home / 31,834.28-47,738.28-13,823.68

Finding the Fourth Proportional to 31,834.28, 47,738.28 and 13,823.68

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Solution

The fourth proportional to 31,834.28, 47,738.28 and 13,823.68 is: 20,729.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,834.28 : 47,738.28 = 13,823.68 : x
  2. Step 2: Convert to fraction form
    31,834.28/47,738.28 = 13,823.68/x
  3. Step 3: Cross multiply
    31,834.28x = 47,738.28 × 13,823.68
  4. Step 4: Simplify right side
    31,834.28x = 659,918,706.47
  5. Step 5: Solve for x
    x = 659,918,706.47/31,834.28
  6. Step 6: Final answer
    x = 20,729.81

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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.