Home / 21,450.08-32,156.08-8,113.75

Finding the Fourth Proportional to 21,450.08, 32,156.08 and 8,113.75

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Solution

The fourth proportional to 21,450.08, 32,156.08 and 8,113.75 is: 12,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.08 : 32,156.08 = 8,113.75 : x
  2. Step 2: Convert to fraction form
    21,450.08/32,156.08 = 8,113.75/x
  3. Step 3: Cross multiply
    21,450.08x = 32,156.08 × 8,113.75
  4. Step 4: Simplify right side
    21,450.08x = 260,906,394.10
  5. Step 5: Solve for x
    x = 260,906,394.10/21,450.08
  6. Step 6: Final answer
    x = 12,163.42

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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.