Home / 38,960.67-53,770.38-21,968.16

Finding the Fourth Proportional to 38,960.67, 53,770.38 and 21,968.16

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Solution

The fourth proportional to 38,960.67, 53,770.38 and 21,968.16 is: 30,318.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,960.67 : 53,770.38 = 21,968.16 : x
  2. Step 2: Convert to fraction form
    38,960.67/53,770.38 = 21,968.16/x
  3. Step 3: Cross multiply
    38,960.67x = 53,770.38 × 21,968.16
  4. Step 4: Simplify right side
    38,960.67x = 1,181,236,311.10
  5. Step 5: Solve for x
    x = 1,181,236,311.10/38,960.67
  6. Step 6: Final answer
    x = 30,318.69

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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.