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Finding the Fourth Proportional to 30,423.66, 41,937.01 and 27,979.68

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Solution

The fourth proportional to 30,423.66, 41,937.01 and 27,979.68 is: 38,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423.66 : 41,937.01 = 27,979.68 : x
  2. Step 2: Convert to fraction form
    30,423.66/41,937.01 = 27,979.68/x
  3. Step 3: Cross multiply
    30,423.66x = 41,937.01 × 27,979.68
  4. Step 4: Simplify right side
    30,423.66x = 1,173,384,119.96
  5. Step 5: Solve for x
    x = 1,173,384,119.96/30,423.66
  6. Step 6: Final answer
    x = 38,568.14

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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.