Home / 26,641.05-39,961.57-7,921.01

Finding the Fourth Proportional to 26,641.05, 39,961.57 and 7,921.01

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Solution

The fourth proportional to 26,641.05, 39,961.57 and 7,921.01 is: 11,881.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,641.05 : 39,961.57 = 7,921.01 : x
  2. Step 2: Convert to fraction form
    26,641.05/39,961.57 = 7,921.01/x
  3. Step 3: Cross multiply
    26,641.05x = 39,961.57 × 7,921.01
  4. Step 4: Simplify right side
    26,641.05x = 316,535,995.59
  5. Step 5: Solve for x
    x = 316,535,995.59/26,641.05
  6. Step 6: Final answer
    x = 11,881.51

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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.