Home / 27,642.26-38,145.15-15,704.25

Finding the Fourth Proportional to 27,642.26, 38,145.15 and 15,704.25

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Solution

The fourth proportional to 27,642.26, 38,145.15 and 15,704.25 is: 21,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,642.26 : 38,145.15 = 15,704.25 : x
  2. Step 2: Convert to fraction form
    27,642.26/38,145.15 = 15,704.25/x
  3. Step 3: Cross multiply
    27,642.26x = 38,145.15 × 15,704.25
  4. Step 4: Simplify right side
    27,642.26x = 599,040,971.89
  5. Step 5: Solve for x
    x = 599,040,971.89/27,642.26
  6. Step 6: Final answer
    x = 21,671.20

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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.