Home / 25,458.05-38,171.72-11,415.54

Finding the Fourth Proportional to 25,458.05, 38,171.72 and 11,415.54

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Solution

The fourth proportional to 25,458.05, 38,171.72 and 11,415.54 is: 17,116.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.05 : 38,171.72 = 11,415.54 : x
  2. Step 2: Convert to fraction form
    25,458.05/38,171.72 = 11,415.54/x
  3. Step 3: Cross multiply
    25,458.05x = 38,171.72 × 11,415.54
  4. Step 4: Simplify right side
    25,458.05x = 435,750,796.53
  5. Step 5: Solve for x
    x = 435,750,796.53/25,458.05
  6. Step 6: Final answer
    x = 17,116.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.