Home / 39,338.64-54,287.94-21,433.64

Finding the Fourth Proportional to 39,338.64, 54,287.94 and 21,433.64

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Solution

The fourth proportional to 39,338.64, 54,287.94 and 21,433.64 is: 29,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,338.64 : 54,287.94 = 21,433.64 : x
  2. Step 2: Convert to fraction form
    39,338.64/54,287.94 = 21,433.64/x
  3. Step 3: Cross multiply
    39,338.64x = 54,287.94 × 21,433.64
  4. Step 4: Simplify right side
    39,338.64x = 1,163,587,890.86
  5. Step 5: Solve for x
    x = 1,163,587,890.86/39,338.64
  6. Step 6: Final answer
    x = 29,578.75

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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.