Home / 20,512.44-30,787.92-10,658.72

Finding the Fourth Proportional to 20,512.44, 30,787.92 and 10,658.72

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Solution

The fourth proportional to 20,512.44, 30,787.92 and 10,658.72 is: 15,998.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.44 : 30,787.92 = 10,658.72 : x
  2. Step 2: Convert to fraction form
    20,512.44/30,787.92 = 10,658.72/x
  3. Step 3: Cross multiply
    20,512.44x = 30,787.92 × 10,658.72
  4. Step 4: Simplify right side
    20,512.44x = 328,159,818.66
  5. Step 5: Solve for x
    x = 328,159,818.66/20,512.44
  6. Step 6: Final answer
    x = 15,998.09

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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.