Home / 40,179.60-55,432.80-23,171.76

Finding the Fourth Proportional to 40,179.60, 55,432.80 and 23,171.76

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Solution

The fourth proportional to 40,179.60, 55,432.80 and 23,171.76 is: 31,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,179.60 : 55,432.80 = 23,171.76 : x
  2. Step 2: Convert to fraction form
    40,179.60/55,432.80 = 23,171.76/x
  3. Step 3: Cross multiply
    40,179.60x = 55,432.80 × 23,171.76
  4. Step 4: Simplify right side
    40,179.60x = 1,284,475,537.73
  5. Step 5: Solve for x
    x = 1,284,475,537.73/40,179.60
  6. Step 6: Final answer
    x = 31,968.35

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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.