Home / 27,327.20-37,711.16-15,391.72

Finding the Fourth Proportional to 27,327.20, 37,711.16 and 15,391.72

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Solution

The fourth proportional to 27,327.20, 37,711.16 and 15,391.72 is: 21,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,327.20 : 37,711.16 = 15,391.72 : x
  2. Step 2: Convert to fraction form
    27,327.20/37,711.16 = 15,391.72/x
  3. Step 3: Cross multiply
    27,327.20x = 37,711.16 × 15,391.72
  4. Step 4: Simplify right side
    27,327.20x = 580,439,615.60
  5. Step 5: Solve for x
    x = 580,439,615.60/27,327.20
  6. Step 6: Final answer
    x = 21,240.36

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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.