Home / 20,217.37-30,339.93-7,069.75

Finding the Fourth Proportional to 20,217.37, 30,339.93 and 7,069.75

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Solution

The fourth proportional to 20,217.37, 30,339.93 and 7,069.75 is: 10,609.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.37 : 30,339.93 = 7,069.75 : x
  2. Step 2: Convert to fraction form
    20,217.37/30,339.93 = 7,069.75/x
  3. Step 3: Cross multiply
    20,217.37x = 30,339.93 × 7,069.75
  4. Step 4: Simplify right side
    20,217.37x = 214,495,720.12
  5. Step 5: Solve for x
    x = 214,495,720.12/20,217.37
  6. Step 6: Final answer
    x = 10,609.48

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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.