Home / 22,197.80-30,604.38-15,831.65

Finding the Fourth Proportional to 22,197.80, 30,604.38 and 15,831.65

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Solution

The fourth proportional to 22,197.80, 30,604.38 and 15,831.65 is: 21,827.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,197.80 : 30,604.38 = 15,831.65 : x
  2. Step 2: Convert to fraction form
    22,197.80/30,604.38 = 15,831.65/x
  3. Step 3: Cross multiply
    22,197.80x = 30,604.38 × 15,831.65
  4. Step 4: Simplify right side
    22,197.80x = 484,517,832.63
  5. Step 5: Solve for x
    x = 484,517,832.63/22,197.80
  6. Step 6: Final answer
    x = 21,827.29

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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.