Home / 21,257.34-31,876.20-6,462.96

Finding the Fourth Proportional to 21,257.34, 31,876.20 and 6,462.96

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Solution

The fourth proportional to 21,257.34, 31,876.20 and 6,462.96 is: 9,691.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.34 : 31,876.20 = 6,462.96 : x
  2. Step 2: Convert to fraction form
    21,257.34/31,876.20 = 6,462.96/x
  3. Step 3: Cross multiply
    21,257.34x = 31,876.20 × 6,462.96
  4. Step 4: Simplify right side
    21,257.34x = 206,014,605.55
  5. Step 5: Solve for x
    x = 206,014,605.55/21,257.34
  6. Step 6: Final answer
    x = 9,691.46

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1.5x scale

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.