Home / 31,378.75-43,302.72-17,232.55

Finding the Fourth Proportional to 31,378.75, 43,302.72 and 17,232.55

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Solution

The fourth proportional to 31,378.75, 43,302.72 and 17,232.55 is: 23,780.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.75 : 43,302.72 = 17,232.55 : x
  2. Step 2: Convert to fraction form
    31,378.75/43,302.72 = 17,232.55/x
  3. Step 3: Cross multiply
    31,378.75x = 43,302.72 × 17,232.55
  4. Step 4: Simplify right side
    31,378.75x = 746,216,287.54
  5. Step 5: Solve for x
    x = 746,216,287.54/31,378.75
  6. Step 6: Final answer
    x = 23,780.94

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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.