Home / 20,075.58-30,115.42-6,927.91

Finding the Fourth Proportional to 20,075.58, 30,115.42 and 6,927.91

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Solution

The fourth proportional to 20,075.58, 30,115.42 and 6,927.91 is: 10,392.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.58 : 30,115.42 = 6,927.91 : x
  2. Step 2: Convert to fraction form
    20,075.58/30,115.42 = 6,927.91/x
  3. Step 3: Cross multiply
    20,075.58x = 30,115.42 × 6,927.91
  4. Step 4: Simplify right side
    20,075.58x = 208,636,919.37
  5. Step 5: Solve for x
    x = 208,636,919.37/20,075.58
  6. Step 6: Final answer
    x = 10,392.57

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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.