Home / 31,286.04-43,178.84-17,854.21

Finding the Fourth Proportional to 31,286.04, 43,178.84 and 17,854.21

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Solution

The fourth proportional to 31,286.04, 43,178.84 and 17,854.21 is: 24,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.04 : 43,178.84 = 17,854.21 : x
  2. Step 2: Convert to fraction form
    31,286.04/43,178.84 = 17,854.21/x
  3. Step 3: Cross multiply
    31,286.04x = 43,178.84 × 17,854.21
  4. Step 4: Simplify right side
    31,286.04x = 770,924,076.92
  5. Step 5: Solve for x
    x = 770,924,076.92/31,286.04
  6. Step 6: Final answer
    x = 24,641.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.