Home / 27,983.87-38,605.26-18,906.32

Finding the Fourth Proportional to 27,983.87, 38,605.26 and 18,906.32

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Solution

The fourth proportional to 27,983.87, 38,605.26 and 18,906.32 is: 26,082.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,983.87 : 38,605.26 = 18,906.32 : x
  2. Step 2: Convert to fraction form
    27,983.87/38,605.26 = 18,906.32/x
  3. Step 3: Cross multiply
    27,983.87x = 38,605.26 × 18,906.32
  4. Step 4: Simplify right side
    27,983.87x = 729,883,399.24
  5. Step 5: Solve for x
    x = 729,883,399.24/27,983.87
  6. Step 6: Final answer
    x = 26,082.29

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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.