Home / 27,629.82-38,127.96-15,693.12

Finding the Fourth Proportional to 27,629.82, 38,127.96 and 15,693.12

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Solution

The fourth proportional to 27,629.82, 38,127.96 and 15,693.12 is: 21,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.82 : 38,127.96 = 15,693.12 : x
  2. Step 2: Convert to fraction form
    27,629.82/38,127.96 = 15,693.12/x
  3. Step 3: Cross multiply
    27,629.82x = 38,127.96 × 15,693.12
  4. Step 4: Simplify right side
    27,629.82x = 598,346,651.64
  5. Step 5: Solve for x
    x = 598,346,651.64/27,629.82
  6. Step 6: Final answer
    x = 21,655.83

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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.