Home / 21,462.40-32,198.40-8,313.60

Finding the Fourth Proportional to 21,462.40, 32,198.40 and 8,313.60

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Solution

The fourth proportional to 21,462.40, 32,198.40 and 8,313.60 is: 12,472.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.40 : 32,198.40 = 8,313.60 : x
  2. Step 2: Convert to fraction form
    21,462.40/32,198.40 = 8,313.60/x
  3. Step 3: Cross multiply
    21,462.40x = 32,198.40 × 8,313.60
  4. Step 4: Simplify right side
    21,462.40x = 267,684,618.24
  5. Step 5: Solve for x
    x = 267,684,618.24/21,462.40
  6. Step 6: Final answer
    x = 12,472.26

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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.