Home / 22,902.42-31,604.79-12,831.18

Finding the Fourth Proportional to 22,902.42, 31,604.79 and 12,831.18

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Solution

The fourth proportional to 22,902.42, 31,604.79 and 12,831.18 is: 17,706.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,902.42 : 31,604.79 = 12,831.18 : x
  2. Step 2: Convert to fraction form
    22,902.42/31,604.79 = 12,831.18/x
  3. Step 3: Cross multiply
    22,902.42x = 31,604.79 × 12,831.18
  4. Step 4: Simplify right side
    22,902.42x = 405,526,749.35
  5. Step 5: Solve for x
    x = 405,526,749.35/22,902.42
  6. Step 6: Final answer
    x = 17,706.72

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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.