Home / 20,763.41-28,652.72-11,331.77

Finding the Fourth Proportional to 20,763.41, 28,652.72 and 11,331.77

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Solution

The fourth proportional to 20,763.41, 28,652.72 and 11,331.77 is: 15,637.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.41 : 28,652.72 = 11,331.77 : x
  2. Step 2: Convert to fraction form
    20,763.41/28,652.72 = 11,331.77/x
  3. Step 3: Cross multiply
    20,763.41x = 28,652.72 × 11,331.77
  4. Step 4: Simplify right side
    20,763.41x = 324,685,832.99
  5. Step 5: Solve for x
    x = 324,685,832.99/20,763.41
  6. Step 6: Final answer
    x = 15,637.41

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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.