Home / 31,255.85-43,133.00-16,915.71

Finding the Fourth Proportional to 31,255.85, 43,133.00 and 16,915.71

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Solution

The fourth proportional to 31,255.85, 43,133.00 and 16,915.71 is: 23,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.85 : 43,133.00 = 16,915.71 : x
  2. Step 2: Convert to fraction form
    31,255.85/43,133.00 = 16,915.71/x
  3. Step 3: Cross multiply
    31,255.85x = 43,133.00 × 16,915.71
  4. Step 4: Simplify right side
    31,255.85x = 729,625,350.52
  5. Step 5: Solve for x
    x = 729,625,350.52/31,255.85
  6. Step 6: Final answer
    x = 23,343.64

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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.