Home / 21,274.04-31,913.24-8,137.46

Finding the Fourth Proportional to 21,274.04, 31,913.24 and 8,137.46

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Solution

The fourth proportional to 21,274.04, 31,913.24 and 8,137.46 is: 12,207.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.04 : 31,913.24 = 8,137.46 : x
  2. Step 2: Convert to fraction form
    21,274.04/31,913.24 = 8,137.46/x
  3. Step 3: Cross multiply
    21,274.04x = 31,913.24 × 8,137.46
  4. Step 4: Simplify right side
    21,274.04x = 259,692,513.72
  5. Step 5: Solve for x
    x = 259,692,513.72/21,274.04
  6. Step 6: Final answer
    x = 12,207.02

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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.