Home / 19,621.98-27,078.19-10,669.49

Finding the Fourth Proportional to 19,621.98, 27,078.19 and 10,669.49

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Solution

The fourth proportional to 19,621.98, 27,078.19 and 10,669.49 is: 14,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.98 : 27,078.19 = 10,669.49 : x
  2. Step 2: Convert to fraction form
    19,621.98/27,078.19 = 10,669.49/x
  3. Step 3: Cross multiply
    19,621.98x = 27,078.19 × 10,669.49
  4. Step 4: Simplify right side
    19,621.98x = 288,910,288.68
  5. Step 5: Solve for x
    x = 288,910,288.68/19,621.98
  6. Step 6: Final answer
    x = 14,723.81

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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.