Home / 20,732.71-28,611.36-11,301.27

Finding the Fourth Proportional to 20,732.71, 28,611.36 and 11,301.27

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Solution

The fourth proportional to 20,732.71, 28,611.36 and 11,301.27 is: 15,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.71 : 28,611.36 = 11,301.27 : x
  2. Step 2: Convert to fraction form
    20,732.71/28,611.36 = 11,301.27/x
  3. Step 3: Cross multiply
    20,732.71x = 28,611.36 × 11,301.27
  4. Step 4: Simplify right side
    20,732.71x = 323,344,561.37
  5. Step 5: Solve for x
    x = 323,344,561.37/20,732.71
  6. Step 6: Final answer
    x = 15,595.87

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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.