Home / 21,450.40-32,180.40-8,301.60

Finding the Fourth Proportional to 21,450.40, 32,180.40 and 8,301.60

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Solution

The fourth proportional to 21,450.40, 32,180.40 and 8,301.60 is: 12,454.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.40 : 32,180.40 = 8,301.60 : x
  2. Step 2: Convert to fraction form
    21,450.40/32,180.40 = 8,301.60/x
  3. Step 3: Cross multiply
    21,450.40x = 32,180.40 × 8,301.60
  4. Step 4: Simplify right side
    21,450.40x = 267,148,808.64
  5. Step 5: Solve for x
    x = 267,148,808.64/21,450.40
  6. Step 6: Final answer
    x = 12,454.26

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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.