Home / 27,057.21-37,338.84-15,120.55

Finding the Fourth Proportional to 27,057.21, 37,338.84 and 15,120.55

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Solution

The fourth proportional to 27,057.21, 37,338.84 and 15,120.55 is: 20,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.21 : 37,338.84 = 15,120.55 : x
  2. Step 2: Convert to fraction form
    27,057.21/37,338.84 = 15,120.55/x
  3. Step 3: Cross multiply
    27,057.21x = 37,338.84 × 15,120.55
  4. Step 4: Simplify right side
    27,057.21x = 564,583,610.47
  5. Step 5: Solve for x
    x = 564,583,610.47/27,057.21
  6. Step 6: Final answer
    x = 20,866.29

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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.