Home / 27,695.13-38,219.24-15,119.88

Finding the Fourth Proportional to 27,695.13, 38,219.24 and 15,119.88

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Solution

The fourth proportional to 27,695.13, 38,219.24 and 15,119.88 is: 20,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,695.13 : 38,219.24 = 15,119.88 : x
  2. Step 2: Convert to fraction form
    27,695.13/38,219.24 = 15,119.88/x
  3. Step 3: Cross multiply
    27,695.13x = 38,219.24 × 15,119.88
  4. Step 4: Simplify right side
    27,695.13x = 577,870,246.89
  5. Step 5: Solve for x
    x = 577,870,246.89/27,695.13
  6. Step 6: Final answer
    x = 20,865.41

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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.