Home / 27,111.90-37,415.22-15,175.20

Finding the Fourth Proportional to 27,111.90, 37,415.22 and 15,175.20

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Solution

The fourth proportional to 27,111.90, 37,415.22 and 15,175.20 is: 20,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.90 : 37,415.22 = 15,175.20 : x
  2. Step 2: Convert to fraction form
    27,111.90/37,415.22 = 15,175.20/x
  3. Step 3: Cross multiply
    27,111.90x = 37,415.22 × 15,175.20
  4. Step 4: Simplify right side
    27,111.90x = 567,783,446.54
  5. Step 5: Solve for x
    x = 567,783,446.54/27,111.90
  6. Step 6: Final answer
    x = 20,942.22

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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.