Home / 20,077.70-30,120.86-6,036.56

Finding the Fourth Proportional to 20,077.70, 30,120.86 and 6,036.56

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Solution

The fourth proportional to 20,077.70, 30,120.86 and 6,036.56 is: 9,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.70 : 30,120.86 = 6,036.56 : x
  2. Step 2: Convert to fraction form
    20,077.70/30,120.86 = 6,036.56/x
  3. Step 3: Cross multiply
    20,077.70x = 30,120.86 × 6,036.56
  4. Step 4: Simplify right side
    20,077.70x = 181,826,197.85
  5. Step 5: Solve for x
    x = 181,826,197.85/20,077.70
  6. Step 6: Final answer
    x = 9,056.13

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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.