Home / 39,522.51-54,540.66-21,617.86

Finding the Fourth Proportional to 39,522.51, 54,540.66 and 21,617.86

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Solution

The fourth proportional to 39,522.51, 54,540.66 and 21,617.86 is: 29,832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,522.51 : 54,540.66 = 21,617.86 : x
  2. Step 2: Convert to fraction form
    39,522.51/54,540.66 = 21,617.86/x
  3. Step 3: Cross multiply
    39,522.51x = 54,540.66 × 21,617.86
  4. Step 4: Simplify right side
    39,522.51x = 1,179,052,352.19
  5. Step 5: Solve for x
    x = 1,179,052,352.19/39,522.51
  6. Step 6: Final answer
    x = 29,832.43

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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.