Home / 27,142.21-37,456.98-15,205.29

Finding the Fourth Proportional to 27,142.21, 37,456.98 and 15,205.29

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Solution

The fourth proportional to 27,142.21, 37,456.98 and 15,205.29 is: 20,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,142.21 : 37,456.98 = 15,205.29 : x
  2. Step 2: Convert to fraction form
    27,142.21/37,456.98 = 15,205.29/x
  3. Step 3: Cross multiply
    27,142.21x = 37,456.98 × 15,205.29
  4. Step 4: Simplify right side
    27,142.21x = 569,544,131.47
  5. Step 5: Solve for x
    x = 569,544,131.47/27,142.21
  6. Step 6: Final answer
    x = 20,983.71

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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.