Home / 21,647.98-32,471.20-8,317.54

Finding the Fourth Proportional to 21,647.98, 32,471.20 and 8,317.54

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Solution

The fourth proportional to 21,647.98, 32,471.20 and 8,317.54 is: 12,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.98 : 32,471.20 = 8,317.54 : x
  2. Step 2: Convert to fraction form
    21,647.98/32,471.20 = 8,317.54/x
  3. Step 3: Cross multiply
    21,647.98x = 32,471.20 × 8,317.54
  4. Step 4: Simplify right side
    21,647.98x = 270,080,504.85
  5. Step 5: Solve for x
    x = 270,080,504.85/21,647.98
  6. Step 6: Final answer
    x = 12,476.01

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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.