Home / 20,768.62-31,152.66-5,977.48

Finding the Fourth Proportional to 20,768.62, 31,152.66 and 5,977.48

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Solution

The fourth proportional to 20,768.62, 31,152.66 and 5,977.48 is: 8,966.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768.62 : 31,152.66 = 5,977.48 : x
  2. Step 2: Convert to fraction form
    20,768.62/31,152.66 = 5,977.48/x
  3. Step 3: Cross multiply
    20,768.62x = 31,152.66 × 5,977.48
  4. Step 4: Simplify right side
    20,768.62x = 186,214,402.10
  5. Step 5: Solve for x
    x = 186,214,402.10/20,768.62
  6. Step 6: Final answer
    x = 8,966.14

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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.