Home / 20,027.85-30,043.32-5,986.90

Finding the Fourth Proportional to 20,027.85, 30,043.32 and 5,986.90

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Solution

The fourth proportional to 20,027.85, 30,043.32 and 5,986.90 is: 8,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.85 : 30,043.32 = 5,986.90 : x
  2. Step 2: Convert to fraction form
    20,027.85/30,043.32 = 5,986.90/x
  3. Step 3: Cross multiply
    20,027.85x = 30,043.32 × 5,986.90
  4. Step 4: Simplify right side
    20,027.85x = 179,866,352.51
  5. Step 5: Solve for x
    x = 179,866,352.51/20,027.85
  6. Step 6: Final answer
    x = 8,980.81

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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.