Home / 21,961.36-32,938.52-7,170.16

Finding the Fourth Proportional to 21,961.36, 32,938.52 and 7,170.16

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Solution

The fourth proportional to 21,961.36, 32,938.52 and 7,170.16 is: 10,754.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.36 : 32,938.52 = 7,170.16 : x
  2. Step 2: Convert to fraction form
    21,961.36/32,938.52 = 7,170.16/x
  3. Step 3: Cross multiply
    21,961.36x = 32,938.52 × 7,170.16
  4. Step 4: Simplify right side
    21,961.36x = 236,174,458.56
  5. Step 5: Solve for x
    x = 236,174,458.56/21,961.36
  6. Step 6: Final answer
    x = 10,754.09

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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.