Home / 39,538.16-54,561.84-21,633.12

Finding the Fourth Proportional to 39,538.16, 54,561.84 and 21,633.12

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Solution

The fourth proportional to 39,538.16, 54,561.84 and 21,633.12 is: 29,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,538.16 : 54,561.84 = 21,633.12 : x
  2. Step 2: Convert to fraction form
    39,538.16/54,561.84 = 21,633.12/x
  3. Step 3: Cross multiply
    39,538.16x = 54,561.84 × 21,633.12
  4. Step 4: Simplify right side
    39,538.16x = 1,180,342,832.14
  5. Step 5: Solve for x
    x = 1,180,342,832.14/39,538.16
  6. Step 6: Final answer
    x = 29,853.26

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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.