Home / 20,726.55-31,094.26-6,687.38

Finding the Fourth Proportional to 20,726.55, 31,094.26 and 6,687.38

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Solution

The fourth proportional to 20,726.55, 31,094.26 and 6,687.38 is: 10,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.55 : 31,094.26 = 6,687.38 : x
  2. Step 2: Convert to fraction form
    20,726.55/31,094.26 = 6,687.38/x
  3. Step 3: Cross multiply
    20,726.55x = 31,094.26 × 6,687.38
  4. Step 4: Simplify right side
    20,726.55x = 207,938,976.97
  5. Step 5: Solve for x
    x = 207,938,976.97/20,726.55
  6. Step 6: Final answer
    x = 10,032.50

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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.