Home / 31,918.50-47,886.89-10,863.18

Finding the Fourth Proportional to 31,918.50, 47,886.89 and 10,863.18

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Solution

The fourth proportional to 31,918.50, 47,886.89 and 10,863.18 is: 16,297.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.50 : 47,886.89 = 10,863.18 : x
  2. Step 2: Convert to fraction form
    31,918.50/47,886.89 = 10,863.18/x
  3. Step 3: Cross multiply
    31,918.50x = 47,886.89 × 10,863.18
  4. Step 4: Simplify right side
    31,918.50x = 520,203,851.39
  5. Step 5: Solve for x
    x = 520,203,851.39/31,918.50
  6. Step 6: Final answer
    x = 16,297.88

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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.