Home / 19,872.06-29,807.97-5,080.95

Finding the Fourth Proportional to 19,872.06, 29,807.97 and 5,080.95

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Solution

The fourth proportional to 19,872.06, 29,807.97 and 5,080.95 is: 7,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.06 : 29,807.97 = 5,080.95 : x
  2. Step 2: Convert to fraction form
    19,872.06/29,807.97 = 5,080.95/x
  3. Step 3: Cross multiply
    19,872.06x = 29,807.97 × 5,080.95
  4. Step 4: Simplify right side
    19,872.06x = 151,452,805.17
  5. Step 5: Solve for x
    x = 151,452,805.17/19,872.06
  6. Step 6: Final answer
    x = 7,621.39

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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.