Home / 26,979.15-37,231.38-15,655.38

Finding the Fourth Proportional to 26,979.15, 37,231.38 and 15,655.38

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Solution

The fourth proportional to 26,979.15, 37,231.38 and 15,655.38 is: 21,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.15 : 37,231.38 = 15,655.38 : x
  2. Step 2: Convert to fraction form
    26,979.15/37,231.38 = 15,655.38/x
  3. Step 3: Cross multiply
    26,979.15x = 37,231.38 × 15,655.38
  4. Step 4: Simplify right side
    26,979.15x = 582,871,401.82
  5. Step 5: Solve for x
    x = 582,871,401.82/26,979.15
  6. Step 6: Final answer
    x = 21,604.51

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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.