Home / 31,664.60-43,702.53-18,243.62

Finding the Fourth Proportional to 31,664.60, 43,702.53 and 18,243.62

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Solution

The fourth proportional to 31,664.60, 43,702.53 and 18,243.62 is: 25,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,664.60 : 43,702.53 = 18,243.62 : x
  2. Step 2: Convert to fraction form
    31,664.60/43,702.53 = 18,243.62/x
  3. Step 3: Cross multiply
    31,664.60x = 43,702.53 × 18,243.62
  4. Step 4: Simplify right side
    31,664.60x = 797,292,350.36
  5. Step 5: Solve for x
    x = 797,292,350.36/31,664.60
  6. Step 6: Final answer
    x = 25,179.30

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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.