Home / 20,217.80-30,326.73-7,070.15

Finding the Fourth Proportional to 20,217.80, 30,326.73 and 7,070.15

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Solution

The fourth proportional to 20,217.80, 30,326.73 and 7,070.15 is: 10,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.80 : 30,326.73 = 7,070.15 : x
  2. Step 2: Convert to fraction form
    20,217.80/30,326.73 = 7,070.15/x
  3. Step 3: Cross multiply
    20,217.80x = 30,326.73 × 7,070.15
  4. Step 4: Simplify right side
    20,217.80x = 214,414,530.11
  5. Step 5: Solve for x
    x = 214,414,530.11/20,217.80
  6. Step 6: Final answer
    x = 10,605.24

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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.