Home / 17,425.60-26,138.40-16,745.20

Finding the Fourth Proportional to 17,425.60, 26,138.40 and 16,745.20

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Solution

The fourth proportional to 17,425.60, 26,138.40 and 16,745.20 is: 25,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,425.60 : 26,138.40 = 16,745.20 : x
  2. Step 2: Convert to fraction form
    17,425.60/26,138.40 = 16,745.20/x
  3. Step 3: Cross multiply
    17,425.60x = 26,138.40 × 16,745.20
  4. Step 4: Simplify right side
    17,425.60x = 437,692,735.68
  5. Step 5: Solve for x
    x = 437,692,735.68/17,425.60
  6. Step 6: Final answer
    x = 25,117.80

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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.