Home / 39,447.26-54,436.55-21,541.88

Finding the Fourth Proportional to 39,447.26, 54,436.55 and 21,541.88

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Solution

The fourth proportional to 39,447.26, 54,436.55 and 21,541.88 is: 29,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,447.26 : 54,436.55 = 21,541.88 : x
  2. Step 2: Convert to fraction form
    39,447.26/54,436.55 = 21,541.88/x
  3. Step 3: Cross multiply
    39,447.26x = 54,436.55 × 21,541.88
  4. Step 4: Simplify right side
    39,447.26x = 1,172,665,247.82
  5. Step 5: Solve for x
    x = 1,172,665,247.82/39,447.26
  6. Step 6: Final answer
    x = 29,727.42

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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.