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Finding the Fourth Proportional to 29,195.64, 40,318.02 and 20,266.20

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Solution

The fourth proportional to 29,195.64, 40,318.02 and 20,266.20 is: 27,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,195.64 : 40,318.02 = 20,266.20 : x
  2. Step 2: Convert to fraction form
    29,195.64/40,318.02 = 20,266.20/x
  3. Step 3: Cross multiply
    29,195.64x = 40,318.02 × 20,266.20
  4. Step 4: Simplify right side
    29,195.64x = 817,093,056.92
  5. Step 5: Solve for x
    x = 817,093,056.92/29,195.64
  6. Step 6: Final answer
    x = 27,986.82

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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.