Home / 22,728.77-31,375.38-15,281.09

Finding the Fourth Proportional to 22,728.77, 31,375.38 and 15,281.09

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Solution

The fourth proportional to 22,728.77, 31,375.38 and 15,281.09 is: 21,094.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.77 : 31,375.38 = 15,281.09 : x
  2. Step 2: Convert to fraction form
    22,728.77/31,375.38 = 15,281.09/x
  3. Step 3: Cross multiply
    22,728.77x = 31,375.38 × 15,281.09
  4. Step 4: Simplify right side
    22,728.77x = 479,449,848.69
  5. Step 5: Solve for x
    x = 479,449,848.69/22,728.77
  6. Step 6: Final answer
    x = 21,094.41

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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.