Home / 20,085.96-27,717.90-11,134.28

Finding the Fourth Proportional to 20,085.96, 27,717.90 and 11,134.28

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Solution

The fourth proportional to 20,085.96, 27,717.90 and 11,134.28 is: 15,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.96 : 27,717.90 = 11,134.28 : x
  2. Step 2: Convert to fraction form
    20,085.96/27,717.90 = 11,134.28/x
  3. Step 3: Cross multiply
    20,085.96x = 27,717.90 × 11,134.28
  4. Step 4: Simplify right side
    20,085.96x = 308,618,859.61
  5. Step 5: Solve for x
    x = 308,618,859.61/20,085.96
  6. Step 6: Final answer
    x = 15,364.90

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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.