Home / 31,096.80-42,913.20-16,949.44

Finding the Fourth Proportional to 31,096.80, 42,913.20 and 16,949.44

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Solution

The fourth proportional to 31,096.80, 42,913.20 and 16,949.44 is: 23,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,096.80 : 42,913.20 = 16,949.44 : x
  2. Step 2: Convert to fraction form
    31,096.80/42,913.20 = 16,949.44/x
  3. Step 3: Cross multiply
    31,096.80x = 42,913.20 × 16,949.44
  4. Step 4: Simplify right side
    31,096.80x = 727,354,708.61
  5. Step 5: Solve for x
    x = 727,354,708.61/31,096.80
  6. Step 6: Final answer
    x = 23,390.02

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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.