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Finding the Fourth Proportional to 29,608.76, 40,814.06 and 20,161.08

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Solution

The fourth proportional to 29,608.76, 40,814.06 and 20,161.08 is: 27,790.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,608.76 : 40,814.06 = 20,161.08 : x
  2. Step 2: Convert to fraction form
    29,608.76/40,814.06 = 20,161.08/x
  3. Step 3: Cross multiply
    29,608.76x = 40,814.06 × 20,161.08
  4. Step 4: Simplify right side
    29,608.76x = 822,855,528.78
  5. Step 5: Solve for x
    x = 822,855,528.78/29,608.76
  6. Step 6: Final answer
    x = 27,790.95

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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.