Home / 21,022.84-29,012.05-12,072.07

Finding the Fourth Proportional to 21,022.84, 29,012.05 and 12,072.07

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Solution

The fourth proportional to 21,022.84, 29,012.05 and 12,072.07 is: 16,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.84 : 29,012.05 = 12,072.07 : x
  2. Step 2: Convert to fraction form
    21,022.84/29,012.05 = 12,072.07/x
  3. Step 3: Cross multiply
    21,022.84x = 29,012.05 × 12,072.07
  4. Step 4: Simplify right side
    21,022.84x = 350,235,498.44
  5. Step 5: Solve for x
    x = 350,235,498.44/21,022.84
  6. Step 6: Final answer
    x = 16,659.76

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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.