Home / 20,648.30-30,972.48-5,065.93

Finding the Fourth Proportional to 20,648.30, 30,972.48 and 5,065.93

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Solution

The fourth proportional to 20,648.30, 30,972.48 and 5,065.93 is: 7,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.30 : 30,972.48 = 5,065.93 : x
  2. Step 2: Convert to fraction form
    20,648.30/30,972.48 = 5,065.93/x
  3. Step 3: Cross multiply
    20,648.30x = 30,972.48 × 5,065.93
  4. Step 4: Simplify right side
    20,648.30x = 156,904,338.18
  5. Step 5: Solve for x
    x = 156,904,338.18/20,648.30
  6. Step 6: Final answer
    x = 7,598.90

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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.