Home / 19,988.12-27,583.65-11,035.64

Finding the Fourth Proportional to 19,988.12, 27,583.65 and 11,035.64

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Solution

The fourth proportional to 19,988.12, 27,583.65 and 11,035.64 is: 15,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.12 : 27,583.65 = 11,035.64 : x
  2. Step 2: Convert to fraction form
    19,988.12/27,583.65 = 11,035.64/x
  3. Step 3: Cross multiply
    19,988.12x = 27,583.65 × 11,035.64
  4. Step 4: Simplify right side
    19,988.12x = 304,403,300.25
  5. Step 5: Solve for x
    x = 304,403,300.25/19,988.12
  6. Step 6: Final answer
    x = 15,229.21

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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.