Home / 20,216.90-27,898.72-11,263.85

Finding the Fourth Proportional to 20,216.90, 27,898.72 and 11,263.85

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Solution

The fourth proportional to 20,216.90, 27,898.72 and 11,263.85 is: 15,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.90 : 27,898.72 = 11,263.85 : x
  2. Step 2: Convert to fraction form
    20,216.90/27,898.72 = 11,263.85/x
  3. Step 3: Cross multiply
    20,216.90x = 27,898.72 × 11,263.85
  4. Step 4: Simplify right side
    20,216.90x = 314,246,997.27
  5. Step 5: Solve for x
    x = 314,246,997.27/20,216.90
  6. Step 6: Final answer
    x = 15,543.78

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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.