Home / 21,898.44-32,837.76-10,215

Finding the Fourth Proportional to 21,898.44, 32,837.76 and 10,215

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Solution

The fourth proportional to 21,898.44, 32,837.76 and 10,215 is: 15,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.44 : 32,837.76 = 10,215 : x
  2. Step 2: Convert to fraction form
    21,898.44/32,837.76 = 10,215/x
  3. Step 3: Cross multiply
    21,898.44x = 32,837.76 × 10,215
  4. Step 4: Simplify right side
    21,898.44x = 335,437,718.40
  5. Step 5: Solve for x
    x = 335,437,718.40/21,898.44
  6. Step 6: Final answer
    x = 15,317.88

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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.