Home / 27,175.47-40,702.98-20,889.21

Finding the Fourth Proportional to 27,175.47, 40,702.98 and 20,889.21

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Solution

The fourth proportional to 27,175.47, 40,702.98 and 20,889.21 is: 31,287.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,175.47 : 40,702.98 = 20,889.21 : x
  2. Step 2: Convert to fraction form
    27,175.47/40,702.98 = 20,889.21/x
  3. Step 3: Cross multiply
    27,175.47x = 40,702.98 × 20,889.21
  4. Step 4: Simplify right side
    27,175.47x = 850,253,096.85
  5. Step 5: Solve for x
    x = 850,253,096.85/27,175.47
  6. Step 6: Final answer
    x = 31,287.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.