Home / 19,988.82-27,587.97-19,103.13

Finding the Fourth Proportional to 19,988.82, 27,587.97 and 19,103.13

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Solution

The fourth proportional to 19,988.82, 27,587.97 and 19,103.13 is: 26,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.82 : 27,587.97 = 19,103.13 : x
  2. Step 2: Convert to fraction form
    19,988.82/27,587.97 = 19,103.13/x
  3. Step 3: Cross multiply
    19,988.82x = 27,587.97 × 19,103.13
  4. Step 4: Simplify right side
    19,988.82x = 527,016,577.35
  5. Step 5: Solve for x
    x = 527,016,577.35/19,988.82
  6. Step 6: Final answer
    x = 26,365.57

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1.5x scale

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.