Home / 20,217.96-27,900.05-11,265.00

Finding the Fourth Proportional to 20,217.96, 27,900.05 and 11,265.00

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Solution

The fourth proportional to 20,217.96, 27,900.05 and 11,265.00 is: 15,545.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.96 : 27,900.05 = 11,265.00 : x
  2. Step 2: Convert to fraction form
    20,217.96/27,900.05 = 11,265.00/x
  3. Step 3: Cross multiply
    20,217.96x = 27,900.05 × 11,265.00
  4. Step 4: Simplify right side
    20,217.96x = 314,293,902.30
  5. Step 5: Solve for x
    x = 314,293,902.30/20,217.96
  6. Step 6: Final answer
    x = 15,545.28

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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.