Home / 43,781.24-65,665.31-12,188.00

Finding the Fourth Proportional to 43,781.24, 65,665.31 and 12,188.00

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Solution

The fourth proportional to 43,781.24, 65,665.31 and 12,188.00 is: 18,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,781.24 : 65,665.31 = 12,188.00 : x
  2. Step 2: Convert to fraction form
    43,781.24/65,665.31 = 12,188.00/x
  3. Step 3: Cross multiply
    43,781.24x = 65,665.31 × 12,188.00
  4. Step 4: Simplify right side
    43,781.24x = 800,328,901.50
  5. Step 5: Solve for x
    x = 800,328,901.50/43,781.24
  6. Step 6: Final answer
    x = 18,280.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.