Home / 26,736.74-36,896.16-15,405.56

Finding the Fourth Proportional to 26,736.74, 36,896.16 and 15,405.56

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Solution

The fourth proportional to 26,736.74, 36,896.16 and 15,405.56 is: 21,259.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,736.74 : 36,896.16 = 15,405.56 : x
  2. Step 2: Convert to fraction form
    26,736.74/36,896.16 = 15,405.56/x
  3. Step 3: Cross multiply
    26,736.74x = 36,896.16 × 15,405.56
  4. Step 4: Simplify right side
    26,736.74x = 568,405,822.17
  5. Step 5: Solve for x
    x = 568,405,822.17/26,736.74
  6. Step 6: Final answer
    x = 21,259.36

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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.