Home / 27,884.30-38,480.38-15,309.86

Finding the Fourth Proportional to 27,884.30, 38,480.38 and 15,309.86

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Solution

The fourth proportional to 27,884.30, 38,480.38 and 15,309.86 is: 21,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,884.30 : 38,480.38 = 15,309.86 : x
  2. Step 2: Convert to fraction form
    27,884.30/38,480.38 = 15,309.86/x
  3. Step 3: Cross multiply
    27,884.30x = 38,480.38 × 15,309.86
  4. Step 4: Simplify right side
    27,884.30x = 589,129,230.55
  5. Step 5: Solve for x
    x = 589,129,230.55/27,884.30
  6. Step 6: Final answer
    x = 21,127.63

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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.