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Finding the Fourth Proportional to 36,282.40, 54,356.40 and 20,653.60

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Solution

The fourth proportional to 36,282.40, 54,356.40 and 20,653.60 is: 30,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,282.40 : 54,356.40 = 20,653.60 : x
  2. Step 2: Convert to fraction form
    36,282.40/54,356.40 = 20,653.60/x
  3. Step 3: Cross multiply
    36,282.40x = 54,356.40 × 20,653.60
  4. Step 4: Simplify right side
    36,282.40x = 1,122,655,343.04
  5. Step 5: Solve for x
    x = 1,122,655,343.04/36,282.40
  6. Step 6: Final answer
    x = 30,942.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.