Home / 28,119.66-42,165.72-9,393.27

Finding the Fourth Proportional to 28,119.66, 42,165.72 and 9,393.27

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Solution

The fourth proportional to 28,119.66, 42,165.72 and 9,393.27 is: 14,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.66 : 42,165.72 = 9,393.27 : x
  2. Step 2: Convert to fraction form
    28,119.66/42,165.72 = 9,393.27/x
  3. Step 3: Cross multiply
    28,119.66x = 42,165.72 × 9,393.27
  4. Step 4: Simplify right side
    28,119.66x = 396,073,992.70
  5. Step 5: Solve for x
    x = 396,073,992.70/28,119.66
  6. Step 6: Final answer
    x = 14,085.31

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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.