Home / 21,743.26-29,998.90-12,181.87

Finding the Fourth Proportional to 21,743.26, 29,998.90 and 12,181.87

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Solution

The fourth proportional to 21,743.26, 29,998.90 and 12,181.87 is: 16,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.26 : 29,998.90 = 12,181.87 : x
  2. Step 2: Convert to fraction form
    21,743.26/29,998.90 = 12,181.87/x
  3. Step 3: Cross multiply
    21,743.26x = 29,998.90 × 12,181.87
  4. Step 4: Simplify right side
    21,743.26x = 365,442,699.94
  5. Step 5: Solve for x
    x = 365,442,699.94/21,743.26
  6. Step 6: Final answer
    x = 16,807.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.