Home / 25,458.45-38,148.66-12,959.75

Finding the Fourth Proportional to 25,458.45, 38,148.66 and 12,959.75

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Solution

The fourth proportional to 25,458.45, 38,148.66 and 12,959.75 is: 19,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.45 : 38,148.66 = 12,959.75 : x
  2. Step 2: Convert to fraction form
    25,458.45/38,148.66 = 12,959.75/x
  3. Step 3: Cross multiply
    25,458.45x = 38,148.66 × 12,959.75
  4. Step 4: Simplify right side
    25,458.45x = 494,396,905.69
  5. Step 5: Solve for x
    x = 494,396,905.69/25,458.45
  6. Step 6: Final answer
    x = 19,419.76

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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.