Home / 25,696.78-38,521.80-9,891.73

Finding the Fourth Proportional to 25,696.78, 38,521.80 and 9,891.73

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Solution

The fourth proportional to 25,696.78, 38,521.80 and 9,891.73 is: 14,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,696.78 : 38,521.80 = 9,891.73 : x
  2. Step 2: Convert to fraction form
    25,696.78/38,521.80 = 9,891.73/x
  3. Step 3: Cross multiply
    25,696.78x = 38,521.80 × 9,891.73
  4. Step 4: Simplify right side
    25,696.78x = 381,047,244.71
  5. Step 5: Solve for x
    x = 381,047,244.71/25,696.78
  6. Step 6: Final answer
    x = 14,828.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.