Home / 31,728.63-43,773.92-18,982.18

Finding the Fourth Proportional to 31,728.63, 43,773.92 and 18,982.18

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Solution

The fourth proportional to 31,728.63, 43,773.92 and 18,982.18 is: 26,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.63 : 43,773.92 = 18,982.18 : x
  2. Step 2: Convert to fraction form
    31,728.63/43,773.92 = 18,982.18/x
  3. Step 3: Cross multiply
    31,728.63x = 43,773.92 × 18,982.18
  4. Step 4: Simplify right side
    31,728.63x = 830,924,428.75
  5. Step 5: Solve for x
    x = 830,924,428.75/31,728.63
  6. Step 6: Final answer
    x = 26,188.47

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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.