Home / 28,630.20-42,958.06-11,101.38

Finding the Fourth Proportional to 28,630.20, 42,958.06 and 11,101.38

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Solution

The fourth proportional to 28,630.20, 42,958.06 and 11,101.38 is: 16,657.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630.20 : 42,958.06 = 11,101.38 : x
  2. Step 2: Convert to fraction form
    28,630.20/42,958.06 = 11,101.38/x
  3. Step 3: Cross multiply
    28,630.20x = 42,958.06 × 11,101.38
  4. Step 4: Simplify right side
    28,630.20x = 476,893,748.12
  5. Step 5: Solve for x
    x = 476,893,748.12/28,630.20
  6. Step 6: Final answer
    x = 16,657.02

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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.