Home / 31,098.20-42,915.56-16,951.14

Finding the Fourth Proportional to 31,098.20, 42,915.56 and 16,951.14

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Solution

The fourth proportional to 31,098.20, 42,915.56 and 16,951.14 is: 23,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,098.20 : 42,915.56 = 16,951.14 : x
  2. Step 2: Convert to fraction form
    31,098.20/42,915.56 = 16,951.14/x
  3. Step 3: Cross multiply
    31,098.20x = 42,915.56 × 16,951.14
  4. Step 4: Simplify right side
    31,098.20x = 727,467,580.98
  5. Step 5: Solve for x
    x = 727,467,580.98/31,098.20
  6. Step 6: Final answer
    x = 23,392.60

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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.