Home / 20,757.93-28,646.06-11,326.70

Finding the Fourth Proportional to 20,757.93, 28,646.06 and 11,326.70

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Solution

The fourth proportional to 20,757.93, 28,646.06 and 11,326.70 is: 15,630.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.93 : 28,646.06 = 11,326.70 : x
  2. Step 2: Convert to fraction form
    20,757.93/28,646.06 = 11,326.70/x
  3. Step 3: Cross multiply
    20,757.93x = 28,646.06 × 11,326.70
  4. Step 4: Simplify right side
    20,757.93x = 324,465,327.80
  5. Step 5: Solve for x
    x = 324,465,327.80/20,757.93
  6. Step 6: Final answer
    x = 15,630.91

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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.