Home / 39,584.12-54,626.02-21,679.14

Finding the Fourth Proportional to 39,584.12, 54,626.02 and 21,679.14

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Solution

The fourth proportional to 39,584.12, 54,626.02 and 21,679.14 is: 29,917.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,584.12 : 54,626.02 = 21,679.14 : x
  2. Step 2: Convert to fraction form
    39,584.12/54,626.02 = 21,679.14/x
  3. Step 3: Cross multiply
    39,584.12x = 54,626.02 × 21,679.14
  4. Step 4: Simplify right side
    39,584.12x = 1,184,245,135.22
  5. Step 5: Solve for x
    x = 1,184,245,135.22/39,584.12
  6. Step 6: Final answer
    x = 29,917.18

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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.