Home / 21,933.75-32,904.05-7,139.17

Finding the Fourth Proportional to 21,933.75, 32,904.05 and 7,139.17

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Solution

The fourth proportional to 21,933.75, 32,904.05 and 7,139.17 is: 10,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.75 : 32,904.05 = 7,139.17 : x
  2. Step 2: Convert to fraction form
    21,933.75/32,904.05 = 7,139.17/x
  3. Step 3: Cross multiply
    21,933.75x = 32,904.05 × 7,139.17
  4. Step 4: Simplify right side
    21,933.75x = 234,907,488.68
  5. Step 5: Solve for x
    x = 234,907,488.68/21,933.75
  6. Step 6: Final answer
    x = 10,709.86

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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.