Home / 36,912.12-55,371.06-13,538.04

Finding the Fourth Proportional to 36,912.12, 55,371.06 and 13,538.04

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Solution

The fourth proportional to 36,912.12, 55,371.06 and 13,538.04 is: 20,308.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.12 : 55,371.06 = 13,538.04 : x
  2. Step 2: Convert to fraction form
    36,912.12/55,371.06 = 13,538.04/x
  3. Step 3: Cross multiply
    36,912.12x = 55,371.06 × 13,538.04
  4. Step 4: Simplify right side
    36,912.12x = 749,615,625.12
  5. Step 5: Solve for x
    x = 749,615,625.12/36,912.12
  6. Step 6: Final answer
    x = 20,308.12

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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.