Home / 43,502.19-65,252.37-13,920.03

Finding the Fourth Proportional to 43,502.19, 65,252.37 and 13,920.03

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Solution

The fourth proportional to 43,502.19, 65,252.37 and 13,920.03 is: 20,879.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,502.19 : 65,252.37 = 13,920.03 : x
  2. Step 2: Convert to fraction form
    43,502.19/65,252.37 = 13,920.03/x
  3. Step 3: Cross multiply
    43,502.19x = 65,252.37 × 13,920.03
  4. Step 4: Simplify right side
    43,502.19x = 908,314,947.97
  5. Step 5: Solve for x
    x = 908,314,947.97/43,502.19
  6. Step 6: Final answer
    x = 20,879.75

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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.