Home / 28,441.35-42,664.19-21,787.47

Finding the Fourth Proportional to 28,441.35, 42,664.19 and 21,787.47

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Solution

The fourth proportional to 28,441.35, 42,664.19 and 21,787.47 is: 32,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.35 : 42,664.19 = 21,787.47 : x
  2. Step 2: Convert to fraction form
    28,441.35/42,664.19 = 21,787.47/x
  3. Step 3: Cross multiply
    28,441.35x = 42,664.19 × 21,787.47
  4. Step 4: Simplify right side
    28,441.35x = 929,544,650.76
  5. Step 5: Solve for x
    x = 929,544,650.76/28,441.35
  6. Step 6: Final answer
    x = 32,682.86

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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.