Home / 27,057.13-37,338.74-15,120.47

Finding the Fourth Proportional to 27,057.13, 37,338.74 and 15,120.47

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Solution

The fourth proportional to 27,057.13, 37,338.74 and 15,120.47 is: 20,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.13 : 37,338.74 = 15,120.47 : x
  2. Step 2: Convert to fraction form
    27,057.13/37,338.74 = 15,120.47/x
  3. Step 3: Cross multiply
    27,057.13x = 37,338.74 × 15,120.47
  4. Step 4: Simplify right side
    27,057.13x = 564,579,149.12
  5. Step 5: Solve for x
    x = 564,579,149.12/27,057.13
  6. Step 6: Final answer
    x = 20,866.19

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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.