Home / 31,159.98-43,001.79-17,013.90

Finding the Fourth Proportional to 31,159.98, 43,001.79 and 17,013.90

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Solution

The fourth proportional to 31,159.98, 43,001.79 and 17,013.90 is: 23,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.98 : 43,001.79 = 17,013.90 : x
  2. Step 2: Convert to fraction form
    31,159.98/43,001.79 = 17,013.90/x
  3. Step 3: Cross multiply
    31,159.98x = 43,001.79 × 17,013.90
  4. Step 4: Simplify right side
    31,159.98x = 731,628,154.88
  5. Step 5: Solve for x
    x = 731,628,154.88/31,159.98
  6. Step 6: Final answer
    x = 23,479.74

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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.