Home / 21,356.85-29,471.88-11,797.44

Finding the Fourth Proportional to 21,356.85, 29,471.88 and 11,797.44

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Solution

The fourth proportional to 21,356.85, 29,471.88 and 11,797.44 is: 16,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356.85 : 29,471.88 = 11,797.44 : x
  2. Step 2: Convert to fraction form
    21,356.85/29,471.88 = 11,797.44/x
  3. Step 3: Cross multiply
    21,356.85x = 29,471.88 × 11,797.44
  4. Step 4: Simplify right side
    21,356.85x = 347,692,735.99
  5. Step 5: Solve for x
    x = 347,692,735.99/21,356.85
  6. Step 6: Final answer
    x = 16,280.15

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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.