Home / 31,436.52-43,382.64-17,289.60

Finding the Fourth Proportional to 31,436.52, 43,382.64 and 17,289.60

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Solution

The fourth proportional to 31,436.52, 43,382.64 and 17,289.60 is: 23,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.52 : 43,382.64 = 17,289.60 : x
  2. Step 2: Convert to fraction form
    31,436.52/43,382.64 = 17,289.60/x
  3. Step 3: Cross multiply
    31,436.52x = 43,382.64 × 17,289.60
  4. Step 4: Simplify right side
    31,436.52x = 750,068,492.54
  5. Step 5: Solve for x
    x = 750,068,492.54/31,436.52
  6. Step 6: Final answer
    x = 23,859.78

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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.