Home / 27,831.12-38,405.52-15,253.44

Finding the Fourth Proportional to 27,831.12, 38,405.52 and 15,253.44

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Solution

The fourth proportional to 27,831.12, 38,405.52 and 15,253.44 is: 21,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,831.12 : 38,405.52 = 15,253.44 : x
  2. Step 2: Convert to fraction form
    27,831.12/38,405.52 = 15,253.44/x
  3. Step 3: Cross multiply
    27,831.12x = 38,405.52 × 15,253.44
  4. Step 4: Simplify right side
    27,831.12x = 585,816,294.99
  5. Step 5: Solve for x
    x = 585,816,294.99/27,831.12
  6. Step 6: Final answer
    x = 21,048.97

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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.