Home / 27,697.06-38,221.92-15,121.81

Finding the Fourth Proportional to 27,697.06, 38,221.92 and 15,121.81

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Solution

The fourth proportional to 27,697.06, 38,221.92 and 15,121.81 is: 20,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,697.06 : 38,221.92 = 15,121.81 : x
  2. Step 2: Convert to fraction form
    27,697.06/38,221.92 = 15,121.81/x
  3. Step 3: Cross multiply
    27,697.06x = 38,221.92 × 15,121.81
  4. Step 4: Simplify right side
    27,697.06x = 577,984,612.08
  5. Step 5: Solve for x
    x = 577,984,612.08/27,697.06
  6. Step 6: Final answer
    x = 20,868.09

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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.