Home / 31,414.52-43,363.44-20,807.60

Finding the Fourth Proportional to 31,414.52, 43,363.44 and 20,807.60

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Solution

The fourth proportional to 31,414.52, 43,363.44 and 20,807.60 is: 28,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,414.52 : 43,363.44 = 20,807.60 : x
  2. Step 2: Convert to fraction form
    31,414.52/43,363.44 = 20,807.60/x
  3. Step 3: Cross multiply
    31,414.52x = 43,363.44 × 20,807.60
  4. Step 4: Simplify right side
    31,414.52x = 902,289,114.14
  5. Step 5: Solve for x
    x = 902,289,114.14/31,414.52
  6. Step 6: Final answer
    x = 28,722.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.