Home / 20,121.55-30,170.52-6,077.35

Finding the Fourth Proportional to 20,121.55, 30,170.52 and 6,077.35

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Solution

The fourth proportional to 20,121.55, 30,170.52 and 6,077.35 is: 9,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.55 : 30,170.52 = 6,077.35 : x
  2. Step 2: Convert to fraction form
    20,121.55/30,170.52 = 6,077.35/x
  3. Step 3: Cross multiply
    20,121.55x = 30,170.52 × 6,077.35
  4. Step 4: Simplify right side
    20,121.55x = 183,356,809.72
  5. Step 5: Solve for x
    x = 183,356,809.72/20,121.55
  6. Step 6: Final answer
    x = 9,112.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.