Home / 20,081.02-27,711.47-11,006.31

Finding the Fourth Proportional to 20,081.02, 27,711.47 and 11,006.31

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Solution

The fourth proportional to 20,081.02, 27,711.47 and 11,006.31 is: 15,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.02 : 27,711.47 = 11,006.31 : x
  2. Step 2: Convert to fraction form
    20,081.02/27,711.47 = 11,006.31/x
  3. Step 3: Cross multiply
    20,081.02x = 27,711.47 × 11,006.31
  4. Step 4: Simplify right side
    20,081.02x = 305,001,029.38
  5. Step 5: Solve for x
    x = 305,001,029.38/20,081.02
  6. Step 6: Final answer
    x = 15,188.53

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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.