Home / 20,722.59-28,597.93-11,769.86

Finding the Fourth Proportional to 20,722.59, 28,597.93 and 11,769.86

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Solution

The fourth proportional to 20,722.59, 28,597.93 and 11,769.86 is: 16,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.59 : 28,597.93 = 11,769.86 : x
  2. Step 2: Convert to fraction form
    20,722.59/28,597.93 = 11,769.86/x
  3. Step 3: Cross multiply
    20,722.59x = 28,597.93 × 11,769.86
  4. Step 4: Simplify right side
    20,722.59x = 336,593,674.46
  5. Step 5: Solve for x
    x = 336,593,674.46/20,722.59
  6. Step 6: Final answer
    x = 16,242.84

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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.