Home / 21,599.67-29,807.42-12,171.27

Finding the Fourth Proportional to 21,599.67, 29,807.42 and 12,171.27

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Solution

The fourth proportional to 21,599.67, 29,807.42 and 12,171.27 is: 16,796.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.67 : 29,807.42 = 12,171.27 : x
  2. Step 2: Convert to fraction form
    21,599.67/29,807.42 = 12,171.27/x
  3. Step 3: Cross multiply
    21,599.67x = 29,807.42 × 12,171.27
  4. Step 4: Simplify right side
    21,599.67x = 362,794,095.97
  5. Step 5: Solve for x
    x = 362,794,095.97/21,599.67
  6. Step 6: Final answer
    x = 16,796.28

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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.