Home / 26,805.50-36,991.62-15,629.66

Finding the Fourth Proportional to 26,805.50, 36,991.62 and 15,629.66

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Solution

The fourth proportional to 26,805.50, 36,991.62 and 15,629.66 is: 21,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,805.50 : 36,991.62 = 15,629.66 : x
  2. Step 2: Convert to fraction form
    26,805.50/36,991.62 = 15,629.66/x
  3. Step 3: Cross multiply
    26,805.50x = 36,991.62 × 15,629.66
  4. Step 4: Simplify right side
    26,805.50x = 578,166,443.45
  5. Step 5: Solve for x
    x = 578,166,443.45/26,805.50
  6. Step 6: Final answer
    x = 21,568.95

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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.