Home / 20,205.23-30,307.91-7,057.60

Finding the Fourth Proportional to 20,205.23, 30,307.91 and 7,057.60

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Solution

The fourth proportional to 20,205.23, 30,307.91 and 7,057.60 is: 10,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.23 : 30,307.91 = 7,057.60 : x
  2. Step 2: Convert to fraction form
    20,205.23/30,307.91 = 7,057.60/x
  3. Step 3: Cross multiply
    20,205.23x = 30,307.91 × 7,057.60
  4. Step 4: Simplify right side
    20,205.23x = 213,900,994.56
  5. Step 5: Solve for x
    x = 213,900,994.56/20,205.23
  6. Step 6: Final answer
    x = 10,586.42

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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.