Home / 27,936.91-38,595.32-20,851.03

Finding the Fourth Proportional to 27,936.91, 38,595.32 and 20,851.03

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Solution

The fourth proportional to 27,936.91, 38,595.32 and 20,851.03 is: 28,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,936.91 : 38,595.32 = 20,851.03 : x
  2. Step 2: Convert to fraction form
    27,936.91/38,595.32 = 20,851.03/x
  3. Step 3: Cross multiply
    27,936.91x = 38,595.32 × 20,851.03
  4. Step 4: Simplify right side
    27,936.91x = 804,752,175.18
  5. Step 5: Solve for x
    x = 804,752,175.18/27,936.91
  6. Step 6: Final answer
    x = 28,806.06

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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.