Home / 20,042.92-30,075.05-11,278.45

Finding the Fourth Proportional to 20,042.92, 30,075.05 and 11,278.45

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Solution

The fourth proportional to 20,042.92, 30,075.05 and 11,278.45 is: 16,923.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.92 : 30,075.05 = 11,278.45 : x
  2. Step 2: Convert to fraction form
    20,042.92/30,075.05 = 11,278.45/x
  3. Step 3: Cross multiply
    20,042.92x = 30,075.05 × 11,278.45
  4. Step 4: Simplify right side
    20,042.92x = 339,199,947.67
  5. Step 5: Solve for x
    x = 339,199,947.67/20,042.92
  6. Step 6: Final answer
    x = 16,923.68

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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.