Home / 21,712.68-29,964.60-12,284.28

Finding the Fourth Proportional to 21,712.68, 29,964.60 and 12,284.28

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Solution

The fourth proportional to 21,712.68, 29,964.60 and 12,284.28 is: 16,952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.68 : 29,964.60 = 12,284.28 : x
  2. Step 2: Convert to fraction form
    21,712.68/29,964.60 = 12,284.28/x
  3. Step 3: Cross multiply
    21,712.68x = 29,964.60 × 12,284.28
  4. Step 4: Simplify right side
    21,712.68x = 368,093,536.49
  5. Step 5: Solve for x
    x = 368,093,536.49/21,712.68
  6. Step 6: Final answer
    x = 16,952.93

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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.