Home / 31,436.60-43,382.50-17,290.36

Finding the Fourth Proportional to 31,436.60, 43,382.50 and 17,290.36

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Solution

The fourth proportional to 31,436.60, 43,382.50 and 17,290.36 is: 23,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.60 : 43,382.50 = 17,290.36 : x
  2. Step 2: Convert to fraction form
    31,436.60/43,382.50 = 17,290.36/x
  3. Step 3: Cross multiply
    31,436.60x = 43,382.50 × 17,290.36
  4. Step 4: Simplify right side
    31,436.60x = 750,099,042.70
  5. Step 5: Solve for x
    x = 750,099,042.70/31,436.60
  6. Step 6: Final answer
    x = 23,860.69

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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.