Home / 20,452.30-30,678.53-6,220.91

Finding the Fourth Proportional to 20,452.30, 30,678.53 and 6,220.91

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Solution

The fourth proportional to 20,452.30, 30,678.53 and 6,220.91 is: 9,331.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.30 : 30,678.53 = 6,220.91 : x
  2. Step 2: Convert to fraction form
    20,452.30/30,678.53 = 6,220.91/x
  3. Step 3: Cross multiply
    20,452.30x = 30,678.53 × 6,220.91
  4. Step 4: Simplify right side
    20,452.30x = 190,848,419.65
  5. Step 5: Solve for x
    x = 190,848,419.65/20,452.30
  6. Step 6: Final answer
    x = 9,331.39

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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.