Home / 43,663.31-65,440.19-18,674.02

Finding the Fourth Proportional to 43,663.31, 65,440.19 and 18,674.02

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Solution

The fourth proportional to 43,663.31, 65,440.19 and 18,674.02 is: 27,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,663.31 : 65,440.19 = 18,674.02 : x
  2. Step 2: Convert to fraction form
    43,663.31/65,440.19 = 18,674.02/x
  3. Step 3: Cross multiply
    43,663.31x = 65,440.19 × 18,674.02
  4. Step 4: Simplify right side
    43,663.31x = 1,222,031,416.86
  5. Step 5: Solve for x
    x = 1,222,031,416.86/43,663.31
  6. Step 6: Final answer
    x = 27,987.61

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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.