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Finding the Fourth Proportional to 28,203.51, 42,305.87 and 9,484.14

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Solution

The fourth proportional to 28,203.51, 42,305.87 and 9,484.14 is: 14,226.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.51 : 42,305.87 = 9,484.14 : x
  2. Step 2: Convert to fraction form
    28,203.51/42,305.87 = 9,484.14/x
  3. Step 3: Cross multiply
    28,203.51x = 42,305.87 × 9,484.14
  4. Step 4: Simplify right side
    28,203.51x = 401,234,793.90
  5. Step 5: Solve for x
    x = 401,234,793.90/28,203.51
  6. Step 6: Final answer
    x = 14,226.41

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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.