Home / 26,643.08-39,964.70-6,921.80

Finding the Fourth Proportional to 26,643.08, 39,964.70 and 6,921.80

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Solution

The fourth proportional to 26,643.08, 39,964.70 and 6,921.80 is: 10,382.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,643.08 : 39,964.70 = 6,921.80 : x
  2. Step 2: Convert to fraction form
    26,643.08/39,964.70 = 6,921.80/x
  3. Step 3: Cross multiply
    26,643.08x = 39,964.70 × 6,921.80
  4. Step 4: Simplify right side
    26,643.08x = 276,627,660.46
  5. Step 5: Solve for x
    x = 276,627,660.46/26,643.08
  6. Step 6: Final answer
    x = 10,382.72

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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.