Home / 20,727.72-28,604.10-11,296.08

Finding the Fourth Proportional to 20,727.72, 28,604.10 and 11,296.08

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Solution

The fourth proportional to 20,727.72, 28,604.10 and 11,296.08 is: 15,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.72 : 28,604.10 = 11,296.08 : x
  2. Step 2: Convert to fraction form
    20,727.72/28,604.10 = 11,296.08/x
  3. Step 3: Cross multiply
    20,727.72x = 28,604.10 × 11,296.08
  4. Step 4: Simplify right side
    20,727.72x = 323,114,201.93
  5. Step 5: Solve for x
    x = 323,114,201.93/20,727.72
  6. Step 6: Final answer
    x = 15,588.51

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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.