Home / 28,787.95-43,228.82-17,764.66

Finding the Fourth Proportional to 28,787.95, 43,228.82 and 17,764.66

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Solution

The fourth proportional to 28,787.95, 43,228.82 and 17,764.66 is: 26,675.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787.95 : 43,228.82 = 17,764.66 : x
  2. Step 2: Convert to fraction form
    28,787.95/43,228.82 = 17,764.66/x
  3. Step 3: Cross multiply
    28,787.95x = 43,228.82 × 17,764.66
  4. Step 4: Simplify right side
    28,787.95x = 767,945,289.50
  5. Step 5: Solve for x
    x = 767,945,289.50/28,787.95
  6. Step 6: Final answer
    x = 26,675.93

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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.