Home / 20,149.82-27,810.05-16,787.30

Finding the Fourth Proportional to 20,149.82, 27,810.05 and 16,787.30

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Solution

The fourth proportional to 20,149.82, 27,810.05 and 16,787.30 is: 23,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.82 : 27,810.05 = 16,787.30 : x
  2. Step 2: Convert to fraction form
    20,149.82/27,810.05 = 16,787.30/x
  3. Step 3: Cross multiply
    20,149.82x = 27,810.05 × 16,787.30
  4. Step 4: Simplify right side
    20,149.82x = 466,855,652.37
  5. Step 5: Solve for x
    x = 466,855,652.37/20,149.82
  6. Step 6: Final answer
    x = 23,169.22

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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.