Home / 27,057.31-37,338.37-15,120.70

Finding the Fourth Proportional to 27,057.31, 37,338.37 and 15,120.70

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Solution

The fourth proportional to 27,057.31, 37,338.37 and 15,120.70 is: 20,866.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.31 : 37,338.37 = 15,120.70 : x
  2. Step 2: Convert to fraction form
    27,057.31/37,338.37 = 15,120.70/x
  3. Step 3: Cross multiply
    27,057.31x = 37,338.37 × 15,120.70
  4. Step 4: Simplify right side
    27,057.31x = 564,582,291.26
  5. Step 5: Solve for x
    x = 564,582,291.26/27,057.31
  6. Step 6: Final answer
    x = 20,866.16

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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.