Home / 20,076.83-27,705.21-11,124.71

Finding the Fourth Proportional to 20,076.83, 27,705.21 and 11,124.71

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Solution

The fourth proportional to 20,076.83, 27,705.21 and 11,124.71 is: 15,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.83 : 27,705.21 = 11,124.71 : x
  2. Step 2: Convert to fraction form
    20,076.83/27,705.21 = 11,124.71/x
  3. Step 3: Cross multiply
    20,076.83x = 27,705.21 × 11,124.71
  4. Step 4: Simplify right side
    20,076.83x = 308,212,426.74
  5. Step 5: Solve for x
    x = 308,212,426.74/20,076.83
  6. Step 6: Final answer
    x = 15,351.65

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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.