Home / 20,077.87-27,706.29-11,124.84

Finding the Fourth Proportional to 20,077.87, 27,706.29 and 11,124.84

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Solution

The fourth proportional to 20,077.87, 27,706.29 and 11,124.84 is: 15,351.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.87 : 27,706.29 = 11,124.84 : x
  2. Step 2: Convert to fraction form
    20,077.87/27,706.29 = 11,124.84/x
  3. Step 3: Cross multiply
    20,077.87x = 27,706.29 × 11,124.84
  4. Step 4: Simplify right side
    20,077.87x = 308,228,043.24
  5. Step 5: Solve for x
    x = 308,228,043.24/20,077.87
  6. Step 6: Final answer
    x = 15,351.63

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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.