Home / 22,582.78-31,146.68-15,418.46

Finding the Fourth Proportional to 22,582.78, 31,146.68 and 15,418.46

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Solution

The fourth proportional to 22,582.78, 31,146.68 and 15,418.46 is: 21,265.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,582.78 : 31,146.68 = 15,418.46 : x
  2. Step 2: Convert to fraction form
    22,582.78/31,146.68 = 15,418.46/x
  3. Step 3: Cross multiply
    22,582.78x = 31,146.68 × 15,418.46
  4. Step 4: Simplify right side
    22,582.78x = 480,233,722.53
  5. Step 5: Solve for x
    x = 480,233,722.53/22,582.78
  6. Step 6: Final answer
    x = 21,265.49

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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.