Home / 19,987.80-27,583.27-11,035.14

Finding the Fourth Proportional to 19,987.80, 27,583.27 and 11,035.14

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Solution

The fourth proportional to 19,987.80, 27,583.27 and 11,035.14 is: 15,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.80 : 27,583.27 = 11,035.14 : x
  2. Step 2: Convert to fraction form
    19,987.80/27,583.27 = 11,035.14/x
  3. Step 3: Cross multiply
    19,987.80x = 27,583.27 × 11,035.14
  4. Step 4: Simplify right side
    19,987.80x = 304,385,246.11
  5. Step 5: Solve for x
    x = 304,385,246.11/19,987.80
  6. Step 6: Final answer
    x = 15,228.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.