Home / 20,075.72-30,112.14-6,224.36

Finding the Fourth Proportional to 20,075.72, 30,112.14 and 6,224.36

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Solution

The fourth proportional to 20,075.72, 30,112.14 and 6,224.36 is: 9,336.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.72 : 30,112.14 = 6,224.36 : x
  2. Step 2: Convert to fraction form
    20,075.72/30,112.14 = 6,224.36/x
  3. Step 3: Cross multiply
    20,075.72x = 30,112.14 × 6,224.36
  4. Step 4: Simplify right side
    20,075.72x = 187,428,799.73
  5. Step 5: Solve for x
    x = 187,428,799.73/20,075.72
  6. Step 6: Final answer
    x = 9,336.09

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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.