Home / 26,691.78-36,838.33-15,361.05

Finding the Fourth Proportional to 26,691.78, 36,838.33 and 15,361.05

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Solution

The fourth proportional to 26,691.78, 36,838.33 and 15,361.05 is: 21,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,691.78 : 36,838.33 = 15,361.05 : x
  2. Step 2: Convert to fraction form
    26,691.78/36,838.33 = 15,361.05/x
  3. Step 3: Cross multiply
    26,691.78x = 36,838.33 × 15,361.05
  4. Step 4: Simplify right side
    26,691.78x = 565,875,429.05
  5. Step 5: Solve for x
    x = 565,875,429.05/26,691.78
  6. Step 6: Final answer
    x = 21,200.36

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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.