Home / 21,959.82-30,304.44-11,888.10

Finding the Fourth Proportional to 21,959.82, 30,304.44 and 11,888.10

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Solution

The fourth proportional to 21,959.82, 30,304.44 and 11,888.10 is: 16,405.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.82 : 30,304.44 = 11,888.10 : x
  2. Step 2: Convert to fraction form
    21,959.82/30,304.44 = 11,888.10/x
  3. Step 3: Cross multiply
    21,959.82x = 30,304.44 × 11,888.10
  4. Step 4: Simplify right side
    21,959.82x = 360,262,213.16
  5. Step 5: Solve for x
    x = 360,262,213.16/21,959.82
  6. Step 6: Final answer
    x = 16,405.52

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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.