Home / 20,942.20-31,411.76-6,152.28

Finding the Fourth Proportional to 20,942.20, 31,411.76 and 6,152.28

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Solution

The fourth proportional to 20,942.20, 31,411.76 and 6,152.28 is: 9,227.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942.20 : 31,411.76 = 6,152.28 : x
  2. Step 2: Convert to fraction form
    20,942.20/31,411.76 = 6,152.28/x
  3. Step 3: Cross multiply
    20,942.20x = 31,411.76 × 6,152.28
  4. Step 4: Simplify right side
    20,942.20x = 193,253,840.40
  5. Step 5: Solve for x
    x = 193,253,840.40/20,942.20
  6. Step 6: Final answer
    x = 9,227.96

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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.