Home / 26,805.75-36,991.97-15,629.91

Finding the Fourth Proportional to 26,805.75, 36,991.97 and 15,629.91

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Solution

The fourth proportional to 26,805.75, 36,991.97 and 15,629.91 is: 21,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,805.75 : 36,991.97 = 15,629.91 : x
  2. Step 2: Convert to fraction form
    26,805.75/36,991.97 = 15,629.91/x
  3. Step 3: Cross multiply
    26,805.75x = 36,991.97 × 15,629.91
  4. Step 4: Simplify right side
    26,805.75x = 578,181,083.67
  5. Step 5: Solve for x
    x = 578,181,083.67/26,805.75
  6. Step 6: Final answer
    x = 21,569.29

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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.