Home / 31,378.55-43,302.47-17,232.30

Finding the Fourth Proportional to 31,378.55, 43,302.47 and 17,232.30

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Solution

The fourth proportional to 31,378.55, 43,302.47 and 17,232.30 is: 23,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.55 : 43,302.47 = 17,232.30 : x
  2. Step 2: Convert to fraction form
    31,378.55/43,302.47 = 17,232.30/x
  3. Step 3: Cross multiply
    31,378.55x = 43,302.47 × 17,232.30
  4. Step 4: Simplify right side
    31,378.55x = 746,201,067.62
  5. Step 5: Solve for x
    x = 746,201,067.62/31,378.55
  6. Step 6: Final answer
    x = 23,780.61

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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.