Home / 21,776.18-32,668.83-8,628.66

Finding the Fourth Proportional to 21,776.18, 32,668.83 and 8,628.66

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Solution

The fourth proportional to 21,776.18, 32,668.83 and 8,628.66 is: 12,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.18 : 32,668.83 = 8,628.66 : x
  2. Step 2: Convert to fraction form
    21,776.18/32,668.83 = 8,628.66/x
  3. Step 3: Cross multiply
    21,776.18x = 32,668.83 × 8,628.66
  4. Step 4: Simplify right side
    21,776.18x = 281,888,226.67
  5. Step 5: Solve for x
    x = 281,888,226.67/21,776.18
  6. Step 6: Final answer
    x = 12,944.80

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1.5x scale

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.