Home / 31,159.08-43,001.28-17,013.24

Finding the Fourth Proportional to 31,159.08, 43,001.28 and 17,013.24

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Solution

The fourth proportional to 31,159.08, 43,001.28 and 17,013.24 is: 23,479.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.08 : 43,001.28 = 17,013.24 : x
  2. Step 2: Convert to fraction form
    31,159.08/43,001.28 = 17,013.24/x
  3. Step 3: Cross multiply
    31,159.08x = 43,001.28 × 17,013.24
  4. Step 4: Simplify right side
    31,159.08x = 731,591,096.95
  5. Step 5: Solve for x
    x = 731,591,096.95/31,159.08
  6. Step 6: Final answer
    x = 23,479.23

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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.