Home / 21,133.02-29,163.96-12,179.01

Finding the Fourth Proportional to 21,133.02, 29,163.96 and 12,179.01

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Solution

The fourth proportional to 21,133.02, 29,163.96 and 12,179.01 is: 16,807.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.02 : 29,163.96 = 12,179.01 : x
  2. Step 2: Convert to fraction form
    21,133.02/29,163.96 = 12,179.01/x
  3. Step 3: Cross multiply
    21,133.02x = 29,163.96 × 12,179.01
  4. Step 4: Simplify right side
    21,133.02x = 355,188,160.48
  5. Step 5: Solve for x
    x = 355,188,160.48/21,133.02
  6. Step 6: Final answer
    x = 16,807.26

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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.