Home / 20,768.20-31,157.07-5,977.24

Finding the Fourth Proportional to 20,768.20, 31,157.07 and 5,977.24

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Solution

The fourth proportional to 20,768.20, 31,157.07 and 5,977.24 is: 8,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768.20 : 31,157.07 = 5,977.24 : x
  2. Step 2: Convert to fraction form
    20,768.20/31,157.07 = 5,977.24/x
  3. Step 3: Cross multiply
    20,768.20x = 31,157.07 × 5,977.24
  4. Step 4: Simplify right side
    20,768.20x = 186,233,285.09
  5. Step 5: Solve for x
    x = 186,233,285.09/20,768.20
  6. Step 6: Final answer
    x = 8,967.23

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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.