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Finding the Fourth Proportional to 28,032, 42,048 and 11,401.08

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Solution

The fourth proportional to 28,032, 42,048 and 11,401.08 is: 17,101.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032 : 42,048 = 11,401.08 : x
  2. Step 2: Convert to fraction form
    28,032/42,048 = 11,401.08/x
  3. Step 3: Cross multiply
    28,032x = 42,048 × 11,401.08
  4. Step 4: Simplify right side
    28,032x = 479,392,611.84
  5. Step 5: Solve for x
    x = 479,392,611.84/28,032
  6. Step 6: Final answer
    x = 17,101.62

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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.