Home / 20,502.82-28,290.46-11,426.19

Finding the Fourth Proportional to 20,502.82, 28,290.46 and 11,426.19

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Solution

The fourth proportional to 20,502.82, 28,290.46 and 11,426.19 is: 15,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.82 : 28,290.46 = 11,426.19 : x
  2. Step 2: Convert to fraction form
    20,502.82/28,290.46 = 11,426.19/x
  3. Step 3: Cross multiply
    20,502.82x = 28,290.46 × 11,426.19
  4. Step 4: Simplify right side
    20,502.82x = 323,252,296.62
  5. Step 5: Solve for x
    x = 323,252,296.62/20,502.82
  6. Step 6: Final answer
    x = 15,766.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.