Home / 22,032.60-30,405.12-11,961.21

Finding the Fourth Proportional to 22,032.60, 30,405.12 and 11,961.21

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Solution

The fourth proportional to 22,032.60, 30,405.12 and 11,961.21 is: 16,506.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,032.60 : 30,405.12 = 11,961.21 : x
  2. Step 2: Convert to fraction form
    22,032.60/30,405.12 = 11,961.21/x
  3. Step 3: Cross multiply
    22,032.60x = 30,405.12 × 11,961.21
  4. Step 4: Simplify right side
    22,032.60x = 363,682,025.40
  5. Step 5: Solve for x
    x = 363,682,025.40/22,032.60
  6. Step 6: Final answer
    x = 16,506.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.