Home / 20,321.43-30,442.71-14,974.91

Finding the Fourth Proportional to 20,321.43, 30,442.71 and 14,974.91

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Solution

The fourth proportional to 20,321.43, 30,442.71 and 14,974.91 is: 22,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321.43 : 30,442.71 = 14,974.91 : x
  2. Step 2: Convert to fraction form
    20,321.43/30,442.71 = 14,974.91/x
  3. Step 3: Cross multiply
    20,321.43x = 30,442.71 × 14,974.91
  4. Step 4: Simplify right side
    20,321.43x = 455,876,804.35
  5. Step 5: Solve for x
    x = 455,876,804.35/20,321.43
  6. Step 6: Final answer
    x = 22,433.30

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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.