Home / 21,937.02-32,911.90-7,896.78

Finding the Fourth Proportional to 21,937.02, 32,911.90 and 7,896.78

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Solution

The fourth proportional to 21,937.02, 32,911.90 and 7,896.78 is: 11,847.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.02 : 32,911.90 = 7,896.78 : x
  2. Step 2: Convert to fraction form
    21,937.02/32,911.90 = 7,896.78/x
  3. Step 3: Cross multiply
    21,937.02x = 32,911.90 × 7,896.78
  4. Step 4: Simplify right side
    21,937.02x = 259,898,033.68
  5. Step 5: Solve for x
    x = 259,898,033.68/21,937.02
  6. Step 6: Final answer
    x = 11,847.46

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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.