Home / 20,701.86-28,573.68-11,754.60

Finding the Fourth Proportional to 20,701.86, 28,573.68 and 11,754.60

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Solution

The fourth proportional to 20,701.86, 28,573.68 and 11,754.60 is: 16,224.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.86 : 28,573.68 = 11,754.60 : x
  2. Step 2: Convert to fraction form
    20,701.86/28,573.68 = 11,754.60/x
  3. Step 3: Cross multiply
    20,701.86x = 28,573.68 × 11,754.60
  4. Step 4: Simplify right side
    20,701.86x = 335,872,178.93
  5. Step 5: Solve for x
    x = 335,872,178.93/20,701.86
  6. Step 6: Final answer
    x = 16,224.25

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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.