Home / 31,098.72-42,915.60-16,951.44

Finding the Fourth Proportional to 31,098.72, 42,915.60 and 16,951.44

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Solution

The fourth proportional to 31,098.72, 42,915.60 and 16,951.44 is: 23,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,098.72 : 42,915.60 = 16,951.44 : x
  2. Step 2: Convert to fraction form
    31,098.72/42,915.60 = 16,951.44/x
  3. Step 3: Cross multiply
    31,098.72x = 42,915.60 × 16,951.44
  4. Step 4: Simplify right side
    31,098.72x = 727,481,218.46
  5. Step 5: Solve for x
    x = 727,481,218.46/31,098.72
  6. Step 6: Final answer
    x = 23,392.64

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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.