Home / 39,238.38-54,148.37-21,333.24

Finding the Fourth Proportional to 39,238.38, 54,148.37 and 21,333.24

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Solution

The fourth proportional to 39,238.38, 54,148.37 and 21,333.24 is: 29,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,238.38 : 54,148.37 = 21,333.24 : x
  2. Step 2: Convert to fraction form
    39,238.38/54,148.37 = 21,333.24/x
  3. Step 3: Cross multiply
    39,238.38x = 54,148.37 × 21,333.24
  4. Step 4: Simplify right side
    39,238.38x = 1,155,160,066.15
  5. Step 5: Solve for x
    x = 1,155,160,066.15/39,238.38
  6. Step 6: Final answer
    x = 29,439.55

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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.