Home / 38,537.13-53,180.43-21,540.90

Finding the Fourth Proportional to 38,537.13, 53,180.43 and 21,540.90

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Solution

The fourth proportional to 38,537.13, 53,180.43 and 21,540.90 is: 29,725.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,537.13 : 53,180.43 = 21,540.90 : x
  2. Step 2: Convert to fraction form
    38,537.13/53,180.43 = 21,540.90/x
  3. Step 3: Cross multiply
    38,537.13x = 53,180.43 × 21,540.90
  4. Step 4: Simplify right side
    38,537.13x = 1,145,554,324.59
  5. Step 5: Solve for x
    x = 1,145,554,324.59/38,537.13
  6. Step 6: Final answer
    x = 29,725.99

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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.