Home / 39,337.64-54,286.56-21,432.64

Finding the Fourth Proportional to 39,337.64, 54,286.56 and 21,432.64

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Solution

The fourth proportional to 39,337.64, 54,286.56 and 21,432.64 is: 29,577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,337.64 : 54,286.56 = 21,432.64 : x
  2. Step 2: Convert to fraction form
    39,337.64/54,286.56 = 21,432.64/x
  3. Step 3: Cross multiply
    39,337.64x = 54,286.56 × 21,432.64
  4. Step 4: Simplify right side
    39,337.64x = 1,163,504,297.32
  5. Step 5: Solve for x
    x = 1,163,504,297.32/39,337.64
  6. Step 6: Final answer
    x = 29,577.38

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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.