Home / 20,135.19-27,776.92-14,170.17

Finding the Fourth Proportional to 20,135.19, 27,776.92 and 14,170.17

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Solution

The fourth proportional to 20,135.19, 27,776.92 and 14,170.17 is: 19,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.19 : 27,776.92 = 14,170.17 : x
  2. Step 2: Convert to fraction form
    20,135.19/27,776.92 = 14,170.17/x
  3. Step 3: Cross multiply
    20,135.19x = 27,776.92 × 14,170.17
  4. Step 4: Simplify right side
    20,135.19x = 393,603,678.48
  5. Step 5: Solve for x
    x = 393,603,678.48/20,135.19
  6. Step 6: Final answer
    x = 19,548.05

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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.