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Finding the Fourth Proportional to 29,571.20, 40,806.60 and 16,822.64

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Solution

The fourth proportional to 29,571.20, 40,806.60 and 16,822.64 is: 23,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,571.20 : 40,806.60 = 16,822.64 : x
  2. Step 2: Convert to fraction form
    29,571.20/40,806.60 = 16,822.64/x
  3. Step 3: Cross multiply
    29,571.20x = 40,806.60 × 16,822.64
  4. Step 4: Simplify right side
    29,571.20x = 686,474,741.42
  5. Step 5: Solve for x
    x = 686,474,741.42/29,571.20
  6. Step 6: Final answer
    x = 23,214.30

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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.