Home / 27,641.20-38,145.82-15,704.16

Finding the Fourth Proportional to 27,641.20, 38,145.82 and 15,704.16

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Solution

The fourth proportional to 27,641.20, 38,145.82 and 15,704.16 is: 21,672.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,641.20 : 38,145.82 = 15,704.16 : x
  2. Step 2: Convert to fraction form
    27,641.20/38,145.82 = 15,704.16/x
  3. Step 3: Cross multiply
    27,641.20x = 38,145.82 × 15,704.16
  4. Step 4: Simplify right side
    27,641.20x = 599,048,060.61
  5. Step 5: Solve for x
    x = 599,048,060.61/27,641.20
  6. Step 6: Final answer
    x = 21,672.29

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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.