Home / 20,683.41-28,542.27-11,251.77

Finding the Fourth Proportional to 20,683.41, 28,542.27 and 11,251.77

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Solution

The fourth proportional to 20,683.41, 28,542.27 and 11,251.77 is: 15,526.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.41 : 28,542.27 = 11,251.77 : x
  2. Step 2: Convert to fraction form
    20,683.41/28,542.27 = 11,251.77/x
  3. Step 3: Cross multiply
    20,683.41x = 28,542.27 × 11,251.77
  4. Step 4: Simplify right side
    20,683.41x = 321,151,057.32
  5. Step 5: Solve for x
    x = 321,151,057.32/20,683.41
  6. Step 6: Final answer
    x = 15,526.99

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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.