Home / 20,729.58-31,089.78-5,938.44

Finding the Fourth Proportional to 20,729.58, 31,089.78 and 5,938.44

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Solution

The fourth proportional to 20,729.58, 31,089.78 and 5,938.44 is: 8,906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.58 : 31,089.78 = 5,938.44 : x
  2. Step 2: Convert to fraction form
    20,729.58/31,089.78 = 5,938.44/x
  3. Step 3: Cross multiply
    20,729.58x = 31,089.78 × 5,938.44
  4. Step 4: Simplify right side
    20,729.58x = 184,624,793.14
  5. Step 5: Solve for x
    x = 184,624,793.14/20,729.58
  6. Step 6: Final answer
    x = 8,906.35

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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.