Home / 31,436.76-43,381.12-17,286.88

Finding the Fourth Proportional to 31,436.76, 43,381.12 and 17,286.88

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Solution

The fourth proportional to 31,436.76, 43,381.12 and 17,286.88 is: 23,855.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.76 : 43,381.12 = 17,286.88 : x
  2. Step 2: Convert to fraction form
    31,436.76/43,381.12 = 17,286.88/x
  3. Step 3: Cross multiply
    31,436.76x = 43,381.12 × 17,286.88
  4. Step 4: Simplify right side
    31,436.76x = 749,924,215.71
  5. Step 5: Solve for x
    x = 749,924,215.71/31,436.76
  6. Step 6: Final answer
    x = 23,855.01

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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.