Home / 31,325.60-43,229.10-17,178.20

Finding the Fourth Proportional to 31,325.60, 43,229.10 and 17,178.20

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Solution

The fourth proportional to 31,325.60, 43,229.10 and 17,178.20 is: 23,705.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325.60 : 43,229.10 = 17,178.20 : x
  2. Step 2: Convert to fraction form
    31,325.60/43,229.10 = 17,178.20/x
  3. Step 3: Cross multiply
    31,325.60x = 43,229.10 × 17,178.20
  4. Step 4: Simplify right side
    31,325.60x = 742,598,125.62
  5. Step 5: Solve for x
    x = 742,598,125.62/31,325.60
  6. Step 6: Final answer
    x = 23,705.79

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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.