Home / 27,758.43-38,307.62-15,819.84

Finding the Fourth Proportional to 27,758.43, 38,307.62 and 15,819.84

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Solution

The fourth proportional to 27,758.43, 38,307.62 and 15,819.84 is: 21,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,758.43 : 38,307.62 = 15,819.84 : x
  2. Step 2: Convert to fraction form
    27,758.43/38,307.62 = 15,819.84/x
  3. Step 3: Cross multiply
    27,758.43x = 38,307.62 × 15,819.84
  4. Step 4: Simplify right side
    27,758.43x = 606,020,458.73
  5. Step 5: Solve for x
    x = 606,020,458.73/27,758.43
  6. Step 6: Final answer
    x = 21,831.94

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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.