Home / 31,279.19-43,165.01-16,939.04

Finding the Fourth Proportional to 31,279.19, 43,165.01 and 16,939.04

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Solution

The fourth proportional to 31,279.19, 43,165.01 and 16,939.04 is: 23,375.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.19 : 43,165.01 = 16,939.04 : x
  2. Step 2: Convert to fraction form
    31,279.19/43,165.01 = 16,939.04/x
  3. Step 3: Cross multiply
    31,279.19x = 43,165.01 × 16,939.04
  4. Step 4: Simplify right side
    31,279.19x = 731,173,530.47
  5. Step 5: Solve for x
    x = 731,173,530.47/31,279.19
  6. Step 6: Final answer
    x = 23,375.72

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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.