Home / 21,933.92-32,893.53-7,139.36

Finding the Fourth Proportional to 21,933.92, 32,893.53 and 7,139.36

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Solution

The fourth proportional to 21,933.92, 32,893.53 and 7,139.36 is: 10,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.92 : 32,893.53 = 7,139.36 : x
  2. Step 2: Convert to fraction form
    21,933.92/32,893.53 = 7,139.36/x
  3. Step 3: Cross multiply
    21,933.92x = 32,893.53 × 7,139.36
  4. Step 4: Simplify right side
    21,933.92x = 234,838,807.80
  5. Step 5: Solve for x
    x = 234,838,807.80/21,933.92
  6. Step 6: Final answer
    x = 10,706.65

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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.