Home / 21,519.41-32,266.70-8,356.42

Finding the Fourth Proportional to 21,519.41, 32,266.70 and 8,356.42

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Solution

The fourth proportional to 21,519.41, 32,266.70 and 8,356.42 is: 12,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519.41 : 32,266.70 = 8,356.42 : x
  2. Step 2: Convert to fraction form
    21,519.41/32,266.70 = 8,356.42/x
  3. Step 3: Cross multiply
    21,519.41x = 32,266.70 × 8,356.42
  4. Step 4: Simplify right side
    21,519.41x = 269,633,894.10
  5. Step 5: Solve for x
    x = 269,633,894.10/21,519.41
  6. Step 6: Final answer
    x = 12,529.80

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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.