Home / 34,178.31-51,236.15-11,979.59

Finding the Fourth Proportional to 34,178.31, 51,236.15 and 11,979.59

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Solution

The fourth proportional to 34,178.31, 51,236.15 and 11,979.59 is: 17,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,178.31 : 51,236.15 = 11,979.59 : x
  2. Step 2: Convert to fraction form
    34,178.31/51,236.15 = 11,979.59/x
  3. Step 3: Cross multiply
    34,178.31x = 51,236.15 × 11,979.59
  4. Step 4: Simplify right side
    34,178.31x = 613,787,754.10
  5. Step 5: Solve for x
    x = 613,787,754.10/34,178.31
  6. Step 6: Final answer
    x = 17,958.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.