Home / 22,902.80-31,608.36-12,831.66

Finding the Fourth Proportional to 22,902.80, 31,608.36 and 12,831.66

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Solution

The fourth proportional to 22,902.80, 31,608.36 and 12,831.66 is: 17,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,902.80 : 31,608.36 = 12,831.66 : x
  2. Step 2: Convert to fraction form
    22,902.80/31,608.36 = 12,831.66/x
  3. Step 3: Cross multiply
    22,902.80x = 31,608.36 × 12,831.66
  4. Step 4: Simplify right side
    22,902.80x = 405,587,728.68
  5. Step 5: Solve for x
    x = 405,587,728.68/22,902.80
  6. Step 6: Final answer
    x = 17,709.09

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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.