Home / 27,823.20-38,395.80-15,247.92

Finding the Fourth Proportional to 27,823.20, 38,395.80 and 15,247.92

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Solution

The fourth proportional to 27,823.20, 38,395.80 and 15,247.92 is: 21,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,823.20 : 38,395.80 = 15,247.92 : x
  2. Step 2: Convert to fraction form
    27,823.20/38,395.80 = 15,247.92/x
  3. Step 3: Cross multiply
    27,823.20x = 38,395.80 × 15,247.92
  4. Step 4: Simplify right side
    27,823.20x = 585,456,086.74
  5. Step 5: Solve for x
    x = 585,456,086.74/27,823.20
  6. Step 6: Final answer
    x = 21,042.01

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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.