Home / 20,227.10-27,912.75-12,677.50

Finding the Fourth Proportional to 20,227.10, 27,912.75 and 12,677.50

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Solution

The fourth proportional to 20,227.10, 27,912.75 and 12,677.50 is: 17,494.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.10 : 27,912.75 = 12,677.50 : x
  2. Step 2: Convert to fraction form
    20,227.10/27,912.75 = 12,677.50/x
  3. Step 3: Cross multiply
    20,227.10x = 27,912.75 × 12,677.50
  4. Step 4: Simplify right side
    20,227.10x = 353,863,888.13
  5. Step 5: Solve for x
    x = 353,863,888.13/20,227.10
  6. Step 6: Final answer
    x = 17,494.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.