Home / 28,366.82-42,431.72-19,932.73

Finding the Fourth Proportional to 28,366.82, 42,431.72 and 19,932.73

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Solution

The fourth proportional to 28,366.82, 42,431.72 and 19,932.73 is: 29,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.82 : 42,431.72 = 19,932.73 : x
  2. Step 2: Convert to fraction form
    28,366.82/42,431.72 = 19,932.73/x
  3. Step 3: Cross multiply
    28,366.82x = 42,431.72 × 19,932.73
  4. Step 4: Simplify right side
    28,366.82x = 845,779,918.53
  5. Step 5: Solve for x
    x = 845,779,918.53/28,366.82
  6. Step 6: Final answer
    x = 29,815.82

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1.5x scale

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.