Home / 20,733.24-28,611.30-11,301.80

Finding the Fourth Proportional to 20,733.24, 28,611.30 and 11,301.80

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Solution

The fourth proportional to 20,733.24, 28,611.30 and 11,301.80 is: 15,596.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.24 : 28,611.30 = 11,301.80 : x
  2. Step 2: Convert to fraction form
    20,733.24/28,611.30 = 11,301.80/x
  3. Step 3: Cross multiply
    20,733.24x = 28,611.30 × 11,301.80
  4. Step 4: Simplify right side
    20,733.24x = 323,359,190.34
  5. Step 5: Solve for x
    x = 323,359,190.34/20,733.24
  6. Step 6: Final answer
    x = 15,596.17

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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.