Home / 27,661.80-38,173.48-15,725.14

Finding the Fourth Proportional to 27,661.80, 38,173.48 and 15,725.14

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Solution

The fourth proportional to 27,661.80, 38,173.48 and 15,725.14 is: 21,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.80 : 38,173.48 = 15,725.14 : x
  2. Step 2: Convert to fraction form
    27,661.80/38,173.48 = 15,725.14/x
  3. Step 3: Cross multiply
    27,661.80x = 38,173.48 × 15,725.14
  4. Step 4: Simplify right side
    27,661.80x = 600,283,182.54
  5. Step 5: Solve for x
    x = 600,283,182.54/27,661.80
  6. Step 6: Final answer
    x = 21,700.80

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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.