Home / 20,077.32-27,706.56-11,125.32

Finding the Fourth Proportional to 20,077.32, 27,706.56 and 11,125.32

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Solution

The fourth proportional to 20,077.32, 27,706.56 and 11,125.32 is: 15,352.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.32 : 27,706.56 = 11,125.32 : x
  2. Step 2: Convert to fraction form
    20,077.32/27,706.56 = 11,125.32/x
  3. Step 3: Cross multiply
    20,077.32x = 27,706.56 × 11,125.32
  4. Step 4: Simplify right side
    20,077.32x = 308,244,346.10
  5. Step 5: Solve for x
    x = 308,244,346.10/20,077.32
  6. Step 6: Final answer
    x = 15,352.86

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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.