Home / 30,306.35-41,836.28-18,831.78

Finding the Fourth Proportional to 30,306.35, 41,836.28 and 18,831.78

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Solution

The fourth proportional to 30,306.35, 41,836.28 and 18,831.78 is: 25,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306.35 : 41,836.28 = 18,831.78 : x
  2. Step 2: Convert to fraction form
    30,306.35/41,836.28 = 18,831.78/x
  3. Step 3: Cross multiply
    30,306.35x = 41,836.28 × 18,831.78
  4. Step 4: Simplify right side
    30,306.35x = 787,851,653.36
  5. Step 5: Solve for x
    x = 787,851,653.36/30,306.35
  6. Step 6: Final answer
    x = 25,996.25

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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.