Home / 39,304.54-54,239.57-21,399.24

Finding the Fourth Proportional to 39,304.54, 54,239.57 and 21,399.24

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Solution

The fourth proportional to 39,304.54, 54,239.57 and 21,399.24 is: 29,530.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,304.54 : 54,239.57 = 21,399.24 : x
  2. Step 2: Convert to fraction form
    39,304.54/54,239.57 = 21,399.24/x
  3. Step 3: Cross multiply
    39,304.54x = 54,239.57 × 21,399.24
  4. Step 4: Simplify right side
    39,304.54x = 1,160,685,567.85
  5. Step 5: Solve for x
    x = 1,160,685,567.85/39,304.54
  6. Step 6: Final answer
    x = 29,530.57

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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.