Home / 21,637.67-32,442.55-8,491.37

Finding the Fourth Proportional to 21,637.67, 32,442.55 and 8,491.37

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Solution

The fourth proportional to 21,637.67, 32,442.55 and 8,491.37 is: 12,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637.67 : 32,442.55 = 8,491.37 : x
  2. Step 2: Convert to fraction form
    21,637.67/32,442.55 = 8,491.37/x
  3. Step 3: Cross multiply
    21,637.67x = 32,442.55 × 8,491.37
  4. Step 4: Simplify right side
    21,637.67x = 275,481,695.79
  5. Step 5: Solve for x
    x = 275,481,695.79/21,637.67
  6. Step 6: Final answer
    x = 12,731.58

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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.