Home / 39,539.16-54,563.22-21,634.12

Finding the Fourth Proportional to 39,539.16, 54,563.22 and 21,634.12

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Solution

The fourth proportional to 39,539.16, 54,563.22 and 21,634.12 is: 29,854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,539.16 : 54,563.22 = 21,634.12 : x
  2. Step 2: Convert to fraction form
    39,539.16/54,563.22 = 21,634.12/x
  3. Step 3: Cross multiply
    39,539.16x = 54,563.22 × 21,634.12
  4. Step 4: Simplify right side
    39,539.16x = 1,180,427,249.07
  5. Step 5: Solve for x
    x = 1,180,427,249.07/39,539.16
  6. Step 6: Final answer
    x = 29,854.64

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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.