Home / 20,077.45-27,707.99-11,124.76

Finding the Fourth Proportional to 20,077.45, 27,707.99 and 11,124.76

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Solution

The fourth proportional to 20,077.45, 27,707.99 and 11,124.76 is: 15,352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.45 : 27,707.99 = 11,124.76 : x
  2. Step 2: Convert to fraction form
    20,077.45/27,707.99 = 11,124.76/x
  3. Step 3: Cross multiply
    20,077.45x = 27,707.99 × 11,124.76
  4. Step 4: Simplify right side
    20,077.45x = 308,244,775.18
  5. Step 5: Solve for x
    x = 308,244,775.18/20,077.45
  6. Step 6: Final answer
    x = 15,352.78

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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.