Home / 21,598.42-32,408.56-9,919.84

Finding the Fourth Proportional to 21,598.42, 32,408.56 and 9,919.84

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Solution

The fourth proportional to 21,598.42, 32,408.56 and 9,919.84 is: 14,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.42 : 32,408.56 = 9,919.84 : x
  2. Step 2: Convert to fraction form
    21,598.42/32,408.56 = 9,919.84/x
  3. Step 3: Cross multiply
    21,598.42x = 32,408.56 × 9,919.84
  4. Step 4: Simplify right side
    21,598.42x = 321,487,729.83
  5. Step 5: Solve for x
    x = 321,487,729.83/21,598.42
  6. Step 6: Final answer
    x = 14,884.78

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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.