Home / 29,112.40-40,179.94-17,178.66

Finding the Fourth Proportional to 29,112.40, 40,179.94 and 17,178.66

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Solution

The fourth proportional to 29,112.40, 40,179.94 and 17,178.66 is: 23,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112.40 : 40,179.94 = 17,178.66 : x
  2. Step 2: Convert to fraction form
    29,112.40/40,179.94 = 17,178.66/x
  3. Step 3: Cross multiply
    29,112.40x = 40,179.94 × 17,178.66
  4. Step 4: Simplify right side
    29,112.40x = 690,237,528.08
  5. Step 5: Solve for x
    x = 690,237,528.08/29,112.40
  6. Step 6: Final answer
    x = 23,709.40

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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.