Home / 25,434.45-38,143.87-17,587.39

Finding the Fourth Proportional to 25,434.45, 38,143.87 and 17,587.39

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Solution

The fourth proportional to 25,434.45, 38,143.87 and 17,587.39 is: 26,375.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,434.45 : 38,143.87 = 17,587.39 : x
  2. Step 2: Convert to fraction form
    25,434.45/38,143.87 = 17,587.39/x
  3. Step 3: Cross multiply
    25,434.45x = 38,143.87 × 17,587.39
  4. Step 4: Simplify right side
    25,434.45x = 670,851,117.80
  5. Step 5: Solve for x
    x = 670,851,117.80/25,434.45
  6. Step 6: Final answer
    x = 26,375.69

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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.