Home / 43,171.24-64,761.50-13,589.96

Finding the Fourth Proportional to 43,171.24, 64,761.50 and 13,589.96

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Solution

The fourth proportional to 43,171.24, 64,761.50 and 13,589.96 is: 20,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,171.24 : 64,761.50 = 13,589.96 : x
  2. Step 2: Convert to fraction form
    43,171.24/64,761.50 = 13,589.96/x
  3. Step 3: Cross multiply
    43,171.24x = 64,761.50 × 13,589.96
  4. Step 4: Simplify right side
    43,171.24x = 880,106,194.54
  5. Step 5: Solve for x
    x = 880,106,194.54/43,171.24
  6. Step 6: Final answer
    x = 20,386.40

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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.