Home / 20,192.12-30,289.20-7,713.22

Finding the Fourth Proportional to 20,192.12, 30,289.20 and 7,713.22

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Solution

The fourth proportional to 20,192.12, 30,289.20 and 7,713.22 is: 11,570.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.12 : 30,289.20 = 7,713.22 : x
  2. Step 2: Convert to fraction form
    20,192.12/30,289.20 = 7,713.22/x
  3. Step 3: Cross multiply
    20,192.12x = 30,289.20 × 7,713.22
  4. Step 4: Simplify right side
    20,192.12x = 233,627,263.22
  5. Step 5: Solve for x
    x = 233,627,263.22/20,192.12
  6. Step 6: Final answer
    x = 11,570.22

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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.