Home / 21,705.76-32,558.72-8,551.04

Finding the Fourth Proportional to 21,705.76, 32,558.72 and 8,551.04

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Solution

The fourth proportional to 21,705.76, 32,558.72 and 8,551.04 is: 12,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.76 : 32,558.72 = 8,551.04 : x
  2. Step 2: Convert to fraction form
    21,705.76/32,558.72 = 8,551.04/x
  3. Step 3: Cross multiply
    21,705.76x = 32,558.72 × 8,551.04
  4. Step 4: Simplify right side
    21,705.76x = 278,410,917.07
  5. Step 5: Solve for x
    x = 278,410,917.07/21,705.76
  6. Step 6: Final answer
    x = 12,826.59

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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.