Home / 21,267.96-31,902.05-8,617.97

Finding the Fourth Proportional to 21,267.96, 31,902.05 and 8,617.97

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Solution

The fourth proportional to 21,267.96, 31,902.05 and 8,617.97 is: 12,926.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.96 : 31,902.05 = 8,617.97 : x
  2. Step 2: Convert to fraction form
    21,267.96/31,902.05 = 8,617.97/x
  3. Step 3: Cross multiply
    21,267.96x = 31,902.05 × 8,617.97
  4. Step 4: Simplify right side
    21,267.96x = 274,930,707.24
  5. Step 5: Solve for x
    x = 274,930,707.24/21,267.96
  6. Step 6: Final answer
    x = 12,926.99

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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.