Home / 20,959.43-31,442.27-6,920.94

Finding the Fourth Proportional to 20,959.43, 31,442.27 and 6,920.94

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Solution

The fourth proportional to 20,959.43, 31,442.27 and 6,920.94 is: 10,382.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959.43 : 31,442.27 = 6,920.94 : x
  2. Step 2: Convert to fraction form
    20,959.43/31,442.27 = 6,920.94/x
  3. Step 3: Cross multiply
    20,959.43x = 31,442.27 × 6,920.94
  4. Step 4: Simplify right side
    20,959.43x = 217,610,029.53
  5. Step 5: Solve for x
    x = 217,610,029.53/20,959.43
  6. Step 6: Final answer
    x = 10,382.44

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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.