Home / 20,785.17-28,633.41-16,534.96

Finding the Fourth Proportional to 20,785.17, 28,633.41 and 16,534.96

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Solution

The fourth proportional to 20,785.17, 28,633.41 and 16,534.96 is: 22,778.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785.17 : 28,633.41 = 16,534.96 : x
  2. Step 2: Convert to fraction form
    20,785.17/28,633.41 = 16,534.96/x
  3. Step 3: Cross multiply
    20,785.17x = 28,633.41 × 16,534.96
  4. Step 4: Simplify right side
    20,785.17x = 473,452,289.01
  5. Step 5: Solve for x
    x = 473,452,289.01/20,785.17
  6. Step 6: Final answer
    x = 22,778.37

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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.