Home / 28,454.91-42,679.17-10,912.44

Finding the Fourth Proportional to 28,454.91, 42,679.17 and 10,912.44

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Solution

The fourth proportional to 28,454.91, 42,679.17 and 10,912.44 is: 16,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.91 : 42,679.17 = 10,912.44 : x
  2. Step 2: Convert to fraction form
    28,454.91/42,679.17 = 10,912.44/x
  3. Step 3: Cross multiply
    28,454.91x = 42,679.17 × 10,912.44
  4. Step 4: Simplify right side
    28,454.91x = 465,733,881.87
  5. Step 5: Solve for x
    x = 465,733,881.87/28,454.91
  6. Step 6: Final answer
    x = 16,367.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.