Home / 25,645.44-35,406.78-19,665.66

Finding the Fourth Proportional to 25,645.44, 35,406.78 and 19,665.66

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Solution

The fourth proportional to 25,645.44, 35,406.78 and 19,665.66 is: 27,150.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,645.44 : 35,406.78 = 19,665.66 : x
  2. Step 2: Convert to fraction form
    25,645.44/35,406.78 = 19,665.66/x
  3. Step 3: Cross multiply
    25,645.44x = 35,406.78 × 19,665.66
  4. Step 4: Simplify right side
    25,645.44x = 696,297,697.17
  5. Step 5: Solve for x
    x = 696,297,697.17/25,645.44
  6. Step 6: Final answer
    x = 27,150.94

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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.