Home / 21,640.08-32,440.06-8,492.56

Finding the Fourth Proportional to 21,640.08, 32,440.06 and 8,492.56

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Solution

The fourth proportional to 21,640.08, 32,440.06 and 8,492.56 is: 12,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,640.08 : 32,440.06 = 8,492.56 : x
  2. Step 2: Convert to fraction form
    21,640.08/32,440.06 = 8,492.56/x
  3. Step 3: Cross multiply
    21,640.08x = 32,440.06 × 8,492.56
  4. Step 4: Simplify right side
    21,640.08x = 275,499,155.95
  5. Step 5: Solve for x
    x = 275,499,155.95/21,640.08
  6. Step 6: Final answer
    x = 12,730.97

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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.