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Finding the Fourth Proportional to 28,538.54, 42,797.16 and 9,813.27

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Solution

The fourth proportional to 28,538.54, 42,797.16 and 9,813.27 is: 14,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.54 : 42,797.16 = 9,813.27 : x
  2. Step 2: Convert to fraction form
    28,538.54/42,797.16 = 9,813.27/x
  3. Step 3: Cross multiply
    28,538.54x = 42,797.16 × 9,813.27
  4. Step 4: Simplify right side
    28,538.54x = 419,980,086.31
  5. Step 5: Solve for x
    x = 419,980,086.31/28,538.54
  6. Step 6: Final answer
    x = 14,716.25

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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.