Home / 20,215.50-27,898.23-11,263

Finding the Fourth Proportional to 20,215.50, 27,898.23 and 11,263

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Solution

The fourth proportional to 20,215.50, 27,898.23 and 11,263 is: 15,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.50 : 27,898.23 = 11,263 : x
  2. Step 2: Convert to fraction form
    20,215.50/27,898.23 = 11,263/x
  3. Step 3: Cross multiply
    20,215.50x = 27,898.23 × 11,263
  4. Step 4: Simplify right side
    20,215.50x = 314,217,764.49
  5. Step 5: Solve for x
    x = 314,217,764.49/20,215.50
  6. Step 6: Final answer
    x = 15,543.41

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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.