Home / 43,837.86-65,772.06-13,856.69

Finding the Fourth Proportional to 43,837.86, 65,772.06 and 13,856.69

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Solution

The fourth proportional to 43,837.86, 65,772.06 and 13,856.69 is: 20,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,837.86 : 65,772.06 = 13,856.69 : x
  2. Step 2: Convert to fraction form
    43,837.86/65,772.06 = 13,856.69/x
  3. Step 3: Cross multiply
    43,837.86x = 65,772.06 × 13,856.69
  4. Step 4: Simplify right side
    43,837.86x = 911,382,717.22
  5. Step 5: Solve for x
    x = 911,382,717.22/43,837.86
  6. Step 6: Final answer
    x = 20,789.85

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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.