Home / 39,680.42-59,521.86-19,959.78

Finding the Fourth Proportional to 39,680.42, 59,521.86 and 19,959.78

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Solution

The fourth proportional to 39,680.42, 59,521.86 and 19,959.78 is: 29,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.42 : 59,521.86 = 19,959.78 : x
  2. Step 2: Convert to fraction form
    39,680.42/59,521.86 = 19,959.78/x
  3. Step 3: Cross multiply
    39,680.42x = 59,521.86 × 19,959.78
  4. Step 4: Simplify right side
    39,680.42x = 1,188,043,230.79
  5. Step 5: Solve for x
    x = 1,188,043,230.79/39,680.42
  6. Step 6: Final answer
    x = 29,940.29

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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.