Home / 31,617.57-47,369.25-19,765.70

Finding the Fourth Proportional to 31,617.57, 47,369.25 and 19,765.70

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Solution

The fourth proportional to 31,617.57, 47,369.25 and 19,765.70 is: 29,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.57 : 47,369.25 = 19,765.70 : x
  2. Step 2: Convert to fraction form
    31,617.57/47,369.25 = 19,765.70/x
  3. Step 3: Cross multiply
    31,617.57x = 47,369.25 × 19,765.70
  4. Step 4: Simplify right side
    31,617.57x = 936,286,384.73
  5. Step 5: Solve for x
    x = 936,286,384.73/31,617.57
  6. Step 6: Final answer
    x = 29,612.85

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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.