Home / 43,147.80-64,721.65-13,568.22

Finding the Fourth Proportional to 43,147.80, 64,721.65 and 13,568.22

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Solution

The fourth proportional to 43,147.80, 64,721.65 and 13,568.22 is: 20,352.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,147.80 : 64,721.65 = 13,568.22 : x
  2. Step 2: Convert to fraction form
    43,147.80/64,721.65 = 13,568.22/x
  3. Step 3: Cross multiply
    43,147.80x = 64,721.65 × 13,568.22
  4. Step 4: Simplify right side
    43,147.80x = 878,157,585.96
  5. Step 5: Solve for x
    x = 878,157,585.96/43,147.80
  6. Step 6: Final answer
    x = 20,352.31

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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.