Home / 17,121.78-25,684.29-4,642.52

Finding the Fourth Proportional to 17,121.78, 25,684.29 and 4,642.52

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Solution

The fourth proportional to 17,121.78, 25,684.29 and 4,642.52 is: 6,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.78 : 25,684.29 = 4,642.52 : x
  2. Step 2: Convert to fraction form
    17,121.78/25,684.29 = 4,642.52/x
  3. Step 3: Cross multiply
    17,121.78x = 25,684.29 × 4,642.52
  4. Step 4: Simplify right side
    17,121.78x = 119,239,701.59
  5. Step 5: Solve for x
    x = 119,239,701.59/17,121.78
  6. Step 6: Final answer
    x = 6,964.21

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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.