Home / 19,669.80-27,141.98-11,168.85

Finding the Fourth Proportional to 19,669.80, 27,141.98 and 11,168.85

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Solution

The fourth proportional to 19,669.80, 27,141.98 and 11,168.85 is: 15,411.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.80 : 27,141.98 = 11,168.85 : x
  2. Step 2: Convert to fraction form
    19,669.80/27,141.98 = 11,168.85/x
  3. Step 3: Cross multiply
    19,669.80x = 27,141.98 × 11,168.85
  4. Step 4: Simplify right side
    19,669.80x = 303,144,647.48
  5. Step 5: Solve for x
    x = 303,144,647.48/19,669.80
  6. Step 6: Final answer
    x = 15,411.68

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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.