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Finding the Fourth Proportional to 27,153.69, 40,736.91 and 8,432.76

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Solution

The fourth proportional to 27,153.69, 40,736.91 and 8,432.76 is: 12,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,153.69 : 40,736.91 = 8,432.76 : x
  2. Step 2: Convert to fraction form
    27,153.69/40,736.91 = 8,432.76/x
  3. Step 3: Cross multiply
    27,153.69x = 40,736.91 × 8,432.76
  4. Step 4: Simplify right side
    27,153.69x = 343,524,585.17
  5. Step 5: Solve for x
    x = 343,524,585.17/27,153.69
  6. Step 6: Final answer
    x = 12,651.12

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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.