Home / 28,103.86-42,151.20-9,383.14

Finding the Fourth Proportional to 28,103.86, 42,151.20 and 9,383.14

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Solution

The fourth proportional to 28,103.86, 42,151.20 and 9,383.14 is: 14,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.86 : 42,151.20 = 9,383.14 : x
  2. Step 2: Convert to fraction form
    28,103.86/42,151.20 = 9,383.14/x
  3. Step 3: Cross multiply
    28,103.86x = 42,151.20 × 9,383.14
  4. Step 4: Simplify right side
    28,103.86x = 395,510,610.77
  5. Step 5: Solve for x
    x = 395,510,610.77/28,103.86
  6. Step 6: Final answer
    x = 14,073.18

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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.