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Finding the Fourth Proportional to 27,509.27, 37,960.90 and 15,571.90

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Solution

The fourth proportional to 27,509.27, 37,960.90 and 15,571.90 is: 21,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,509.27 : 37,960.90 = 15,571.90 : x
  2. Step 2: Convert to fraction form
    27,509.27/37,960.90 = 15,571.90/x
  3. Step 3: Cross multiply
    27,509.27x = 37,960.90 × 15,571.90
  4. Step 4: Simplify right side
    27,509.27x = 591,123,221.29
  5. Step 5: Solve for x
    x = 591,123,221.29/27,509.27
  6. Step 6: Final answer
    x = 21,488.15

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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.