Home / 21,581.15-32,369.06-5,787.36

Finding the Fourth Proportional to 21,581.15, 32,369.06 and 5,787.36

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Solution

The fourth proportional to 21,581.15, 32,369.06 and 5,787.36 is: 8,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581.15 : 32,369.06 = 5,787.36 : x
  2. Step 2: Convert to fraction form
    21,581.15/32,369.06 = 5,787.36/x
  3. Step 3: Cross multiply
    21,581.15x = 32,369.06 × 5,787.36
  4. Step 4: Simplify right side
    21,581.15x = 187,331,374.14
  5. Step 5: Solve for x
    x = 187,331,374.14/21,581.15
  6. Step 6: Final answer
    x = 8,680.33

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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.