Home / 42,822.06-64,231.56-11,231.87

Finding the Fourth Proportional to 42,822.06, 64,231.56 and 11,231.87

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Solution

The fourth proportional to 42,822.06, 64,231.56 and 11,231.87 is: 16,847.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,822.06 : 64,231.56 = 11,231.87 : x
  2. Step 2: Convert to fraction form
    42,822.06/64,231.56 = 11,231.87/x
  3. Step 3: Cross multiply
    42,822.06x = 64,231.56 × 11,231.87
  4. Step 4: Simplify right side
    42,822.06x = 721,440,697.44
  5. Step 5: Solve for x
    x = 721,440,697.44/42,822.06
  6. Step 6: Final answer
    x = 16,847.41

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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.