Home / 20,604.30-30,896.10-10,075.14

Finding the Fourth Proportional to 20,604.30, 30,896.10 and 10,075.14

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Solution

The fourth proportional to 20,604.30, 30,896.10 and 10,075.14 is: 15,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604.30 : 30,896.10 = 10,075.14 : x
  2. Step 2: Convert to fraction form
    20,604.30/30,896.10 = 10,075.14/x
  3. Step 3: Cross multiply
    20,604.30x = 30,896.10 × 10,075.14
  4. Step 4: Simplify right side
    20,604.30x = 311,282,532.95
  5. Step 5: Solve for x
    x = 311,282,532.95/20,604.30
  6. Step 6: Final answer
    x = 15,107.65

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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.