Home / 27,115.41-37,419.77-15,178.72

Finding the Fourth Proportional to 27,115.41, 37,419.77 and 15,178.72

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Solution

The fourth proportional to 27,115.41, 37,419.77 and 15,178.72 is: 20,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.41 : 37,419.77 = 15,178.72 : x
  2. Step 2: Convert to fraction form
    27,115.41/37,419.77 = 15,178.72/x
  3. Step 3: Cross multiply
    27,115.41x = 37,419.77 × 15,178.72
  4. Step 4: Simplify right side
    27,115.41x = 567,984,120.61
  5. Step 5: Solve for x
    x = 567,984,120.61/27,115.41
  6. Step 6: Final answer
    x = 20,946.91

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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.