Home / 31,855.12-47,770.38-15,206.56

Finding the Fourth Proportional to 31,855.12, 47,770.38 and 15,206.56

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Solution

The fourth proportional to 31,855.12, 47,770.38 and 15,206.56 is: 22,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.12 : 47,770.38 = 15,206.56 : x
  2. Step 2: Convert to fraction form
    31,855.12/47,770.38 = 15,206.56/x
  3. Step 3: Cross multiply
    31,855.12x = 47,770.38 × 15,206.56
  4. Step 4: Simplify right side
    31,855.12x = 726,423,149.69
  5. Step 5: Solve for x
    x = 726,423,149.69/31,855.12
  6. Step 6: Final answer
    x = 22,803.97

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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.