Home / 20,077.55-27,705.86-11,124.52

Finding the Fourth Proportional to 20,077.55, 27,705.86 and 11,124.52

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Solution

The fourth proportional to 20,077.55, 27,705.86 and 11,124.52 is: 15,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.55 : 27,705.86 = 11,124.52 : x
  2. Step 2: Convert to fraction form
    20,077.55/27,705.86 = 11,124.52/x
  3. Step 3: Cross multiply
    20,077.55x = 27,705.86 × 11,124.52
  4. Step 4: Simplify right side
    20,077.55x = 308,214,393.69
  5. Step 5: Solve for x
    x = 308,214,393.69/20,077.55
  6. Step 6: Final answer
    x = 15,351.20

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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.