Home / 27,887.82-38,475.74-15,942.70

Finding the Fourth Proportional to 27,887.82, 38,475.74 and 15,942.70

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Solution

The fourth proportional to 27,887.82, 38,475.74 and 15,942.70 is: 21,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,887.82 : 38,475.74 = 15,942.70 : x
  2. Step 2: Convert to fraction form
    27,887.82/38,475.74 = 15,942.70/x
  3. Step 3: Cross multiply
    27,887.82x = 38,475.74 × 15,942.70
  4. Step 4: Simplify right side
    27,887.82x = 613,407,180.10
  5. Step 5: Solve for x
    x = 613,407,180.10/27,887.82
  6. Step 6: Final answer
    x = 21,995.52

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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.