Home / 43,311.29-64,975.03-13,721.18

Finding the Fourth Proportional to 43,311.29, 64,975.03 and 13,721.18

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Solution

The fourth proportional to 43,311.29, 64,975.03 and 13,721.18 is: 20,584.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,311.29 : 64,975.03 = 13,721.18 : x
  2. Step 2: Convert to fraction form
    43,311.29/64,975.03 = 13,721.18/x
  3. Step 3: Cross multiply
    43,311.29x = 64,975.03 × 13,721.18
  4. Step 4: Simplify right side
    43,311.29x = 891,533,722.96
  5. Step 5: Solve for x
    x = 891,533,722.96/43,311.29
  6. Step 6: Final answer
    x = 20,584.33

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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.