Home / 21,132.02-29,163.09-11,700.58

Finding the Fourth Proportional to 21,132.02, 29,163.09 and 11,700.58

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Solution

The fourth proportional to 21,132.02, 29,163.09 and 11,700.58 is: 16,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.02 : 29,163.09 = 11,700.58 : x
  2. Step 2: Convert to fraction form
    21,132.02/29,163.09 = 11,700.58/x
  3. Step 3: Cross multiply
    21,132.02x = 29,163.09 × 11,700.58
  4. Step 4: Simplify right side
    21,132.02x = 341,225,067.59
  5. Step 5: Solve for x
    x = 341,225,067.59/21,132.02
  6. Step 6: Final answer
    x = 16,147.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.