Home / 20,083.08-27,713.95-11,131.42

Finding the Fourth Proportional to 20,083.08, 27,713.95 and 11,131.42

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Solution

The fourth proportional to 20,083.08, 27,713.95 and 11,131.42 is: 15,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.08 : 27,713.95 = 11,131.42 : x
  2. Step 2: Convert to fraction form
    20,083.08/27,713.95 = 11,131.42/x
  3. Step 3: Cross multiply
    20,083.08x = 27,713.95 × 11,131.42
  4. Step 4: Simplify right side
    20,083.08x = 308,495,617.31
  5. Step 5: Solve for x
    x = 308,495,617.31/20,083.08
  6. Step 6: Final answer
    x = 15,360.97

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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.