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Finding the Fourth Proportional to 27,392.61, 37,800.81 and 17,189.15

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Solution

The fourth proportional to 27,392.61, 37,800.81 and 17,189.15 is: 23,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,392.61 : 37,800.81 = 17,189.15 : x
  2. Step 2: Convert to fraction form
    27,392.61/37,800.81 = 17,189.15/x
  3. Step 3: Cross multiply
    27,392.61x = 37,800.81 × 17,189.15
  4. Step 4: Simplify right side
    27,392.61x = 649,763,604.21
  5. Step 5: Solve for x
    x = 649,763,604.21/27,392.61
  6. Step 6: Final answer
    x = 23,720.40

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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.