Home / 19,890.68-29,832.37-8,043.82

Finding the Fourth Proportional to 19,890.68, 29,832.37 and 8,043.82

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Solution

The fourth proportional to 19,890.68, 29,832.37 and 8,043.82 is: 12,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.68 : 29,832.37 = 8,043.82 : x
  2. Step 2: Convert to fraction form
    19,890.68/29,832.37 = 8,043.82/x
  3. Step 3: Cross multiply
    19,890.68x = 29,832.37 × 8,043.82
  4. Step 4: Simplify right side
    19,890.68x = 239,966,119.76
  5. Step 5: Solve for x
    x = 239,966,119.76/19,890.68
  6. Step 6: Final answer
    x = 12,064.25

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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.