Home / 20,724.33-28,598.56-11,770.66

Finding the Fourth Proportional to 20,724.33, 28,598.56 and 11,770.66

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Solution

The fourth proportional to 20,724.33, 28,598.56 and 11,770.66 is: 16,242.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.33 : 28,598.56 = 11,770.66 : x
  2. Step 2: Convert to fraction form
    20,724.33/28,598.56 = 11,770.66/x
  3. Step 3: Cross multiply
    20,724.33x = 28,598.56 × 11,770.66
  4. Step 4: Simplify right side
    20,724.33x = 336,623,825.33
  5. Step 5: Solve for x
    x = 336,623,825.33/20,724.33
  6. Step 6: Final answer
    x = 16,242.93

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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.