Home / 27,964.12-38,589.32-15,388.06

Finding the Fourth Proportional to 27,964.12, 38,589.32 and 15,388.06

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Solution

The fourth proportional to 27,964.12, 38,589.32 and 15,388.06 is: 21,234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,964.12 : 38,589.32 = 15,388.06 : x
  2. Step 2: Convert to fraction form
    27,964.12/38,589.32 = 15,388.06/x
  3. Step 3: Cross multiply
    27,964.12x = 38,589.32 × 15,388.06
  4. Step 4: Simplify right side
    27,964.12x = 593,814,771.52
  5. Step 5: Solve for x
    x = 593,814,771.52/27,964.12
  6. Step 6: Final answer
    x = 21,234.88

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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.