Home / 31,414.42-47,113.88-18,767.64

Finding the Fourth Proportional to 31,414.42, 47,113.88 and 18,767.64

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Solution

The fourth proportional to 31,414.42, 47,113.88 and 18,767.64 is: 28,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,414.42 : 47,113.88 = 18,767.64 : x
  2. Step 2: Convert to fraction form
    31,414.42/47,113.88 = 18,767.64/x
  3. Step 3: Cross multiply
    31,414.42x = 47,113.88 × 18,767.64
  4. Step 4: Simplify right side
    31,414.42x = 884,216,338.84
  5. Step 5: Solve for x
    x = 884,216,338.84/31,414.42
  6. Step 6: Final answer
    x = 28,146.83

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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.