Home / 28,050.75-42,076.17-11,419.83

Finding the Fourth Proportional to 28,050.75, 42,076.17 and 11,419.83

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Solution

The fourth proportional to 28,050.75, 42,076.17 and 11,419.83 is: 17,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.75 : 42,076.17 = 11,419.83 : x
  2. Step 2: Convert to fraction form
    28,050.75/42,076.17 = 11,419.83/x
  3. Step 3: Cross multiply
    28,050.75x = 42,076.17 × 11,419.83
  4. Step 4: Simplify right side
    28,050.75x = 480,502,708.45
  5. Step 5: Solve for x
    x = 480,502,708.45/28,050.75
  6. Step 6: Final answer
    x = 17,129.76

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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.