Home / 31,285.44-43,175.70-18,539.52

Finding the Fourth Proportional to 31,285.44, 43,175.70 and 18,539.52

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Solution

The fourth proportional to 31,285.44, 43,175.70 and 18,539.52 is: 25,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.44 : 43,175.70 = 18,539.52 : x
  2. Step 2: Convert to fraction form
    31,285.44/43,175.70 = 18,539.52/x
  3. Step 3: Cross multiply
    31,285.44x = 43,175.70 × 18,539.52
  4. Step 4: Simplify right side
    31,285.44x = 800,456,753.66
  5. Step 5: Solve for x
    x = 800,456,753.66/31,285.44
  6. Step 6: Final answer
    x = 25,585.60

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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.