Home / 20,507.82-30,727.17-13,561.26

Finding the Fourth Proportional to 20,507.82, 30,727.17 and 13,561.26

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Solution

The fourth proportional to 20,507.82, 30,727.17 and 13,561.26 is: 20,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.82 : 30,727.17 = 13,561.26 : x
  2. Step 2: Convert to fraction form
    20,507.82/30,727.17 = 13,561.26/x
  3. Step 3: Cross multiply
    20,507.82x = 30,727.17 × 13,561.26
  4. Step 4: Simplify right side
    20,507.82x = 416,699,141.43
  5. Step 5: Solve for x
    x = 416,699,141.43/20,507.82
  6. Step 6: Final answer
    x = 20,319.04

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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.