Home / 20,845.78-31,271.72-6,052.78

Finding the Fourth Proportional to 20,845.78, 31,271.72 and 6,052.78

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Solution

The fourth proportional to 20,845.78, 31,271.72 and 6,052.78 is: 9,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.78 : 31,271.72 = 6,052.78 : x
  2. Step 2: Convert to fraction form
    20,845.78/31,271.72 = 6,052.78/x
  3. Step 3: Cross multiply
    20,845.78x = 31,271.72 × 6,052.78
  4. Step 4: Simplify right side
    20,845.78x = 189,280,841.38
  5. Step 5: Solve for x
    x = 189,280,841.38/20,845.78
  6. Step 6: Final answer
    x = 9,080.06

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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.