Home / 26,115.31-36,039.74-15,504.97

Finding the Fourth Proportional to 26,115.31, 36,039.74 and 15,504.97

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Solution

The fourth proportional to 26,115.31, 36,039.74 and 15,504.97 is: 21,397.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,115.31 : 36,039.74 = 15,504.97 : x
  2. Step 2: Convert to fraction form
    26,115.31/36,039.74 = 15,504.97/x
  3. Step 3: Cross multiply
    26,115.31x = 36,039.74 × 15,504.97
  4. Step 4: Simplify right side
    26,115.31x = 558,795,009.98
  5. Step 5: Solve for x
    x = 558,795,009.98/26,115.31
  6. Step 6: Final answer
    x = 21,397.22

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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.