Home / 43,920.24-65,886.78-12,751.44

Finding the Fourth Proportional to 43,920.24, 65,886.78 and 12,751.44

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Solution

The fourth proportional to 43,920.24, 65,886.78 and 12,751.44 is: 19,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,920.24 : 65,886.78 = 12,751.44 : x
  2. Step 2: Convert to fraction form
    43,920.24/65,886.78 = 12,751.44/x
  3. Step 3: Cross multiply
    43,920.24x = 65,886.78 × 12,751.44
  4. Step 4: Simplify right side
    43,920.24x = 840,151,321.96
  5. Step 5: Solve for x
    x = 840,151,321.96/43,920.24
  6. Step 6: Final answer
    x = 19,129.02

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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.