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Finding the Fourth Proportional to 28,322.08, 42,482 and 9,603.52

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Solution

The fourth proportional to 28,322.08, 42,482 and 9,603.52 is: 14,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.08 : 42,482 = 9,603.52 : x
  2. Step 2: Convert to fraction form
    28,322.08/42,482 = 9,603.52/x
  3. Step 3: Cross multiply
    28,322.08x = 42,482 × 9,603.52
  4. Step 4: Simplify right side
    28,322.08x = 407,976,736.64
  5. Step 5: Solve for x
    x = 407,976,736.64/28,322.08
  6. Step 6: Final answer
    x = 14,404.90

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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.