Home / 20,539.70-30,809.45-8,050.90

Finding the Fourth Proportional to 20,539.70, 30,809.45 and 8,050.90

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Solution

The fourth proportional to 20,539.70, 30,809.45 and 8,050.90 is: 12,076.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.70 : 30,809.45 = 8,050.90 : x
  2. Step 2: Convert to fraction form
    20,539.70/30,809.45 = 8,050.90/x
  3. Step 3: Cross multiply
    20,539.70x = 30,809.45 × 8,050.90
  4. Step 4: Simplify right side
    20,539.70x = 248,043,801.01
  5. Step 5: Solve for x
    x = 248,043,801.01/20,539.70
  6. Step 6: Final answer
    x = 12,076.31

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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.