Home / 20,263.87-27,961.36-11,310.22

Finding the Fourth Proportional to 20,263.87, 27,961.36 and 11,310.22

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Solution

The fourth proportional to 20,263.87, 27,961.36 and 11,310.22 is: 15,606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.87 : 27,961.36 = 11,310.22 : x
  2. Step 2: Convert to fraction form
    20,263.87/27,961.36 = 11,310.22/x
  3. Step 3: Cross multiply
    20,263.87x = 27,961.36 × 11,310.22
  4. Step 4: Simplify right side
    20,263.87x = 316,249,034.92
  5. Step 5: Solve for x
    x = 316,249,034.92/20,263.87
  6. Step 6: Final answer
    x = 15,606.55

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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.