Home / 20,794.36-31,186.68-10,253.56

Finding the Fourth Proportional to 20,794.36, 31,186.68 and 10,253.56

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Solution

The fourth proportional to 20,794.36, 31,186.68 and 10,253.56 is: 15,377.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.36 : 31,186.68 = 10,253.56 : x
  2. Step 2: Convert to fraction form
    20,794.36/31,186.68 = 10,253.56/x
  3. Step 3: Cross multiply
    20,794.36x = 31,186.68 × 10,253.56
  4. Step 4: Simplify right side
    20,794.36x = 319,774,494.58
  5. Step 5: Solve for x
    x = 319,774,494.58/20,794.36
  6. Step 6: Final answer
    x = 15,377.94

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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.