Home / 20,085.30-27,717.66-11,589.21

Finding the Fourth Proportional to 20,085.30, 27,717.66 and 11,589.21

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Solution

The fourth proportional to 20,085.30, 27,717.66 and 11,589.21 is: 15,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.30 : 27,717.66 = 11,589.21 : x
  2. Step 2: Convert to fraction form
    20,085.30/27,717.66 = 11,589.21/x
  3. Step 3: Cross multiply
    20,085.30x = 27,717.66 × 11,589.21
  4. Step 4: Simplify right side
    20,085.30x = 321,225,782.45
  5. Step 5: Solve for x
    x = 321,225,782.45/20,085.30
  6. Step 6: Final answer
    x = 15,993.08

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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.