Home / 36,689.28-55,034.88-13,317.12

Finding the Fourth Proportional to 36,689.28, 55,034.88 and 13,317.12

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Solution

The fourth proportional to 36,689.28, 55,034.88 and 13,317.12 is: 19,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.28 : 55,034.88 = 13,317.12 : x
  2. Step 2: Convert to fraction form
    36,689.28/55,034.88 = 13,317.12/x
  3. Step 3: Cross multiply
    36,689.28x = 55,034.88 × 13,317.12
  4. Step 4: Simplify right side
    36,689.28x = 732,906,101.15
  5. Step 5: Solve for x
    x = 732,906,101.15/36,689.28
  6. Step 6: Final answer
    x = 19,976.03

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1.5x scale

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.