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Finding the Fourth Proportional to 21,489.44, 32,227.88 and 9,009.09

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Solution

The fourth proportional to 21,489.44, 32,227.88 and 9,009.09 is: 13,511.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.44 : 32,227.88 = 9,009.09 : x
  2. Step 2: Convert to fraction form
    21,489.44/32,227.88 = 9,009.09/x
  3. Step 3: Cross multiply
    21,489.44x = 32,227.88 × 9,009.09
  4. Step 4: Simplify right side
    21,489.44x = 290,343,826.38
  5. Step 5: Solve for x
    x = 290,343,826.38/21,489.44
  6. Step 6: Final answer
    x = 13,511.00

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1.5x scale

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.