Home / 19,984.42-27,578.34-11,031.91

Finding the Fourth Proportional to 19,984.42, 27,578.34 and 11,031.91

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Solution

The fourth proportional to 19,984.42, 27,578.34 and 11,031.91 is: 15,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.42 : 27,578.34 = 11,031.91 : x
  2. Step 2: Convert to fraction form
    19,984.42/27,578.34 = 11,031.91/x
  3. Step 3: Cross multiply
    19,984.42x = 27,578.34 × 11,031.91
  4. Step 4: Simplify right side
    19,984.42x = 304,241,764.83
  5. Step 5: Solve for x
    x = 304,241,764.83/19,984.42
  6. Step 6: Final answer
    x = 15,223.95

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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.