Home / 25,023.45-34,530.87-13,690.70

Finding the Fourth Proportional to 25,023.45, 34,530.87 and 13,690.70

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Solution

The fourth proportional to 25,023.45, 34,530.87 and 13,690.70 is: 18,892.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,023.45 : 34,530.87 = 13,690.70 : x
  2. Step 2: Convert to fraction form
    25,023.45/34,530.87 = 13,690.70/x
  3. Step 3: Cross multiply
    25,023.45x = 34,530.87 × 13,690.70
  4. Step 4: Simplify right side
    25,023.45x = 472,751,540.80
  5. Step 5: Solve for x
    x = 472,751,540.80/25,023.45
  6. Step 6: Final answer
    x = 18,892.34

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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.