Home / 21,777.84-32,668.25-8,630.19

Finding the Fourth Proportional to 21,777.84, 32,668.25 and 8,630.19

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Solution

The fourth proportional to 21,777.84, 32,668.25 and 8,630.19 is: 12,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,777.84 : 32,668.25 = 8,630.19 : x
  2. Step 2: Convert to fraction form
    21,777.84/32,668.25 = 8,630.19/x
  3. Step 3: Cross multiply
    21,777.84x = 32,668.25 × 8,630.19
  4. Step 4: Simplify right side
    21,777.84x = 281,933,161.32
  5. Step 5: Solve for x
    x = 281,933,161.32/21,777.84
  6. Step 6: Final answer
    x = 12,945.87

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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.