Home / 21,850.72-32,756.40-7,996.48

Finding the Fourth Proportional to 21,850.72, 32,756.40 and 7,996.48

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Solution

The fourth proportional to 21,850.72, 32,756.40 and 7,996.48 is: 11,987.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,850.72 : 32,756.40 = 7,996.48 : x
  2. Step 2: Convert to fraction form
    21,850.72/32,756.40 = 7,996.48/x
  3. Step 3: Cross multiply
    21,850.72x = 32,756.40 × 7,996.48
  4. Step 4: Simplify right side
    21,850.72x = 261,935,897.47
  5. Step 5: Solve for x
    x = 261,935,897.47/21,850.72
  6. Step 6: Final answer
    x = 11,987.52

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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.