Home / 39,393.38-54,361.94-21,488.52

Finding the Fourth Proportional to 39,393.38, 54,361.94 and 21,488.52

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Solution

The fourth proportional to 39,393.38, 54,361.94 and 21,488.52 is: 29,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,393.38 : 54,361.94 = 21,488.52 : x
  2. Step 2: Convert to fraction form
    39,393.38/54,361.94 = 21,488.52/x
  3. Step 3: Cross multiply
    39,393.38x = 54,361.94 × 21,488.52
  4. Step 4: Simplify right side
    39,393.38x = 1,168,157,527.49
  5. Step 5: Solve for x
    x = 1,168,157,527.49/39,393.38
  6. Step 6: Final answer
    x = 29,653.65

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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.