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Finding the Fourth Proportional to 20,030.77, 30,046.94 and 5,991.02

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Solution

The fourth proportional to 20,030.77, 30,046.94 and 5,991.02 is: 8,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.77 : 30,046.94 = 5,991.02 : x
  2. Step 2: Convert to fraction form
    20,030.77/30,046.94 = 5,991.02/x
  3. Step 3: Cross multiply
    20,030.77x = 30,046.94 × 5,991.02
  4. Step 4: Simplify right side
    20,030.77x = 180,011,818.48
  5. Step 5: Solve for x
    x = 180,011,818.48/20,030.77
  6. Step 6: Final answer
    x = 8,986.76

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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.