Home / 28,073.70-42,110.46-19,281.96

Finding the Fourth Proportional to 28,073.70, 42,110.46 and 19,281.96

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Solution

The fourth proportional to 28,073.70, 42,110.46 and 19,281.96 is: 28,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.70 : 42,110.46 = 19,281.96 : x
  2. Step 2: Convert to fraction form
    28,073.70/42,110.46 = 19,281.96/x
  3. Step 3: Cross multiply
    28,073.70x = 42,110.46 × 19,281.96
  4. Step 4: Simplify right side
    28,073.70x = 811,972,205.30
  5. Step 5: Solve for x
    x = 811,972,205.30/28,073.70
  6. Step 6: Final answer
    x = 28,922.88

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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.