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Finding the Fourth Proportional to 27,640.56, 41,468.98 and 8,920.24

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Solution

The fourth proportional to 27,640.56, 41,468.98 and 8,920.24 is: 13,382.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.56 : 41,468.98 = 8,920.24 : x
  2. Step 2: Convert to fraction form
    27,640.56/41,468.98 = 8,920.24/x
  3. Step 3: Cross multiply
    27,640.56x = 41,468.98 × 8,920.24
  4. Step 4: Simplify right side
    27,640.56x = 369,913,254.16
  5. Step 5: Solve for x
    x = 369,913,254.16/27,640.56
  6. Step 6: Final answer
    x = 13,382.99

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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.