Home / 21,933.11-32,912.21-9,281.87

Finding the Fourth Proportional to 21,933.11, 32,912.21 and 9,281.87

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Solution

The fourth proportional to 21,933.11, 32,912.21 and 9,281.87 is: 13,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.11 : 32,912.21 = 9,281.87 : x
  2. Step 2: Convert to fraction form
    21,933.11/32,912.21 = 9,281.87/x
  3. Step 3: Cross multiply
    21,933.11x = 32,912.21 × 9,281.87
  4. Step 4: Simplify right side
    21,933.11x = 305,486,808.22
  5. Step 5: Solve for x
    x = 305,486,808.22/21,933.11
  6. Step 6: Final answer
    x = 13,928.11

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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.