Home / 25,408.05-35,051.94-15,330.87

Finding the Fourth Proportional to 25,408.05, 35,051.94 and 15,330.87

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Solution

The fourth proportional to 25,408.05, 35,051.94 and 15,330.87 is: 21,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,408.05 : 35,051.94 = 15,330.87 : x
  2. Step 2: Convert to fraction form
    25,408.05/35,051.94 = 15,330.87/x
  3. Step 3: Cross multiply
    25,408.05x = 35,051.94 × 15,330.87
  4. Step 4: Simplify right side
    25,408.05x = 537,376,735.39
  5. Step 5: Solve for x
    x = 537,376,735.39/25,408.05
  6. Step 6: Final answer
    x = 21,149.86

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1.5x scale

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.