Home / 21,790.60-32,662.50-8,624.68

Finding the Fourth Proportional to 21,790.60, 32,662.50 and 8,624.68

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Solution

The fourth proportional to 21,790.60, 32,662.50 and 8,624.68 is: 12,927.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.60 : 32,662.50 = 8,624.68 : x
  2. Step 2: Convert to fraction form
    21,790.60/32,662.50 = 8,624.68/x
  3. Step 3: Cross multiply
    21,790.60x = 32,662.50 × 8,624.68
  4. Step 4: Simplify right side
    21,790.60x = 281,703,610.50
  5. Step 5: Solve for x
    x = 281,703,610.50/21,790.60
  6. Step 6: Final answer
    x = 12,927.76

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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.