Home / 20,010.84-27,600.66-15,286.92

Finding the Fourth Proportional to 20,010.84, 27,600.66 and 15,286.92

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Solution

The fourth proportional to 20,010.84, 27,600.66 and 15,286.92 is: 21,085.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.84 : 27,600.66 = 15,286.92 : x
  2. Step 2: Convert to fraction form
    20,010.84/27,600.66 = 15,286.92/x
  3. Step 3: Cross multiply
    20,010.84x = 27,600.66 × 15,286.92
  4. Step 4: Simplify right side
    20,010.84x = 421,929,081.37
  5. Step 5: Solve for x
    x = 421,929,081.37/20,010.84
  6. Step 6: Final answer
    x = 21,085.03

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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.