Home / 21,246.41-31,869.50-5,451.41

Finding the Fourth Proportional to 21,246.41, 31,869.50 and 5,451.41

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Solution

The fourth proportional to 21,246.41, 31,869.50 and 5,451.41 is: 8,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.41 : 31,869.50 = 5,451.41 : x
  2. Step 2: Convert to fraction form
    21,246.41/31,869.50 = 5,451.41/x
  3. Step 3: Cross multiply
    21,246.41x = 31,869.50 × 5,451.41
  4. Step 4: Simplify right side
    21,246.41x = 173,733,763.41
  5. Step 5: Solve for x
    x = 173,733,763.41/21,246.41
  6. Step 6: Final answer
    x = 8,177.09

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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.