Home / 21,618.45-32,414.70-8,455.14

Finding the Fourth Proportional to 21,618.45, 32,414.70 and 8,455.14

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Solution

The fourth proportional to 21,618.45, 32,414.70 and 8,455.14 is: 12,677.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.45 : 32,414.70 = 8,455.14 : x
  2. Step 2: Convert to fraction form
    21,618.45/32,414.70 = 8,455.14/x
  3. Step 3: Cross multiply
    21,618.45x = 32,414.70 × 8,455.14
  4. Step 4: Simplify right side
    21,618.45x = 274,070,826.56
  5. Step 5: Solve for x
    x = 274,070,826.56/21,618.45
  6. Step 6: Final answer
    x = 12,677.64

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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.