Home / 31,425.56-43,367.28-17,279.36

Finding the Fourth Proportional to 31,425.56, 43,367.28 and 17,279.36

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Solution

The fourth proportional to 31,425.56, 43,367.28 and 17,279.36 is: 23,845.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.56 : 43,367.28 = 17,279.36 : x
  2. Step 2: Convert to fraction form
    31,425.56/43,367.28 = 17,279.36/x
  3. Step 3: Cross multiply
    31,425.56x = 43,367.28 × 17,279.36
  4. Step 4: Simplify right side
    31,425.56x = 749,358,843.34
  5. Step 5: Solve for x
    x = 749,358,843.34/31,425.56
  6. Step 6: Final answer
    x = 23,845.52

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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.