Home / 19,935.90-29,891.40-7,449.48

Finding the Fourth Proportional to 19,935.90, 29,891.40 and 7,449.48

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Solution

The fourth proportional to 19,935.90, 29,891.40 and 7,449.48 is: 11,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.90 : 29,891.40 = 7,449.48 : x
  2. Step 2: Convert to fraction form
    19,935.90/29,891.40 = 7,449.48/x
  3. Step 3: Cross multiply
    19,935.90x = 29,891.40 × 7,449.48
  4. Step 4: Simplify right side
    19,935.90x = 222,675,386.47
  5. Step 5: Solve for x
    x = 222,675,386.47/19,935.90
  6. Step 6: Final answer
    x = 11,169.57

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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.