Home / 22,902.82-31,605.60-12,831.08

Finding the Fourth Proportional to 22,902.82, 31,605.60 and 12,831.08

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Solution

The fourth proportional to 22,902.82, 31,605.60 and 12,831.08 is: 17,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,902.82 : 31,605.60 = 12,831.08 : x
  2. Step 2: Convert to fraction form
    22,902.82/31,605.60 = 12,831.08/x
  3. Step 3: Cross multiply
    22,902.82x = 31,605.60 × 12,831.08
  4. Step 4: Simplify right side
    22,902.82x = 405,533,982.05
  5. Step 5: Solve for x
    x = 405,533,982.05/22,902.82
  6. Step 6: Final answer
    x = 17,706.73

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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.