Home / 27,932.68-38,509.37-18,964.61

Finding the Fourth Proportional to 27,932.68, 38,509.37 and 18,964.61

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Solution

The fourth proportional to 27,932.68, 38,509.37 and 18,964.61 is: 26,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,932.68 : 38,509.37 = 18,964.61 : x
  2. Step 2: Convert to fraction form
    27,932.68/38,509.37 = 18,964.61/x
  3. Step 3: Cross multiply
    27,932.68x = 38,509.37 × 18,964.61
  4. Step 4: Simplify right side
    27,932.68x = 730,315,233.60
  5. Step 5: Solve for x
    x = 730,315,233.60/27,932.68
  6. Step 6: Final answer
    x = 26,145.55

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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.