Home / 20,514.93-28,309.80-11,564.25

Finding the Fourth Proportional to 20,514.93, 28,309.80 and 11,564.25

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Solution

The fourth proportional to 20,514.93, 28,309.80 and 11,564.25 is: 15,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.93 : 28,309.80 = 11,564.25 : x
  2. Step 2: Convert to fraction form
    20,514.93/28,309.80 = 11,564.25/x
  3. Step 3: Cross multiply
    20,514.93x = 28,309.80 × 11,564.25
  4. Step 4: Simplify right side
    20,514.93x = 327,381,604.65
  5. Step 5: Solve for x
    x = 327,381,604.65/20,514.93
  6. Step 6: Final answer
    x = 15,958.21

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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.