Home / 21,427.55-32,145.23-6,635.46

Finding the Fourth Proportional to 21,427.55, 32,145.23 and 6,635.46

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Solution

The fourth proportional to 21,427.55, 32,145.23 and 6,635.46 is: 9,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.55 : 32,145.23 = 6,635.46 : x
  2. Step 2: Convert to fraction form
    21,427.55/32,145.23 = 6,635.46/x
  3. Step 3: Cross multiply
    21,427.55x = 32,145.23 × 6,635.46
  4. Step 4: Simplify right side
    21,427.55x = 213,298,404.44
  5. Step 5: Solve for x
    x = 213,298,404.44/21,427.55
  6. Step 6: Final answer
    x = 9,954.40

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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.