Home / 39,148.26-54,024.24-21,243.18

Finding the Fourth Proportional to 39,148.26, 54,024.24 and 21,243.18

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Solution

The fourth proportional to 39,148.26, 54,024.24 and 21,243.18 is: 29,315.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,148.26 : 54,024.24 = 21,243.18 : x
  2. Step 2: Convert to fraction form
    39,148.26/54,024.24 = 21,243.18/x
  3. Step 3: Cross multiply
    39,148.26x = 54,024.24 × 21,243.18
  4. Step 4: Simplify right side
    39,148.26x = 1,147,646,654.68
  5. Step 5: Solve for x
    x = 1,147,646,654.68/39,148.26
  6. Step 6: Final answer
    x = 29,315.39

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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.