Home / 21,528.06-32,231.94-11,631.88

Finding the Fourth Proportional to 21,528.06, 32,231.94 and 11,631.88

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Solution

The fourth proportional to 21,528.06, 32,231.94 and 11,631.88 is: 17,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528.06 : 32,231.94 = 11,631.88 : x
  2. Step 2: Convert to fraction form
    21,528.06/32,231.94 = 11,631.88/x
  3. Step 3: Cross multiply
    21,528.06x = 32,231.94 × 11,631.88
  4. Step 4: Simplify right side
    21,528.06x = 374,918,058.25
  5. Step 5: Solve for x
    x = 374,918,058.25/21,528.06
  6. Step 6: Final answer
    x = 17,415.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.