Home / 21,731.81-32,603.90-6,941.88

Finding the Fourth Proportional to 21,731.81, 32,603.90 and 6,941.88

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Solution

The fourth proportional to 21,731.81, 32,603.90 and 6,941.88 is: 10,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.81 : 32,603.90 = 6,941.88 : x
  2. Step 2: Convert to fraction form
    21,731.81/32,603.90 = 6,941.88/x
  3. Step 3: Cross multiply
    21,731.81x = 32,603.90 × 6,941.88
  4. Step 4: Simplify right side
    21,731.81x = 226,332,326.62
  5. Step 5: Solve for x
    x = 226,332,326.62/21,731.81
  6. Step 6: Final answer
    x = 10,414.80

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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.