Home / 20,264.82-27,943.41-13,178.10

Finding the Fourth Proportional to 20,264.82, 27,943.41 and 13,178.10

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Solution

The fourth proportional to 20,264.82, 27,943.41 and 13,178.10 is: 18,171.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.82 : 27,943.41 = 13,178.10 : x
  2. Step 2: Convert to fraction form
    20,264.82/27,943.41 = 13,178.10/x
  3. Step 3: Cross multiply
    20,264.82x = 27,943.41 × 13,178.10
  4. Step 4: Simplify right side
    20,264.82x = 368,241,051.32
  5. Step 5: Solve for x
    x = 368,241,051.32/20,264.82
  6. Step 6: Final answer
    x = 18,171.44

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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.