Home / 21,571.98-29,766.60-12,617.70

Finding the Fourth Proportional to 21,571.98, 29,766.60 and 12,617.70

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Solution

The fourth proportional to 21,571.98, 29,766.60 and 12,617.70 is: 17,410.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.98 : 29,766.60 = 12,617.70 : x
  2. Step 2: Convert to fraction form
    21,571.98/29,766.60 = 12,617.70/x
  3. Step 3: Cross multiply
    21,571.98x = 29,766.60 × 12,617.70
  4. Step 4: Simplify right side
    21,571.98x = 375,586,028.82
  5. Step 5: Solve for x
    x = 375,586,028.82/21,571.98
  6. Step 6: Final answer
    x = 17,410.83

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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.