Home / 27,142.20-37,454.49-15,205.41

Finding the Fourth Proportional to 27,142.20, 37,454.49 and 15,205.41

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Solution

The fourth proportional to 27,142.20, 37,454.49 and 15,205.41 is: 20,982.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,142.20 : 37,454.49 = 15,205.41 : x
  2. Step 2: Convert to fraction form
    27,142.20/37,454.49 = 15,205.41/x
  3. Step 3: Cross multiply
    27,142.20x = 37,454.49 × 15,205.41
  4. Step 4: Simplify right side
    27,142.20x = 569,510,876.79
  5. Step 5: Solve for x
    x = 569,510,876.79/27,142.20
  6. Step 6: Final answer
    x = 20,982.49

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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.