Home / 20,235.49-30,366.87-7,087.98

Finding the Fourth Proportional to 20,235.49, 30,366.87 and 7,087.98

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Solution

The fourth proportional to 20,235.49, 30,366.87 and 7,087.98 is: 10,636.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.49 : 30,366.87 = 7,087.98 : x
  2. Step 2: Convert to fraction form
    20,235.49/30,366.87 = 7,087.98/x
  3. Step 3: Cross multiply
    20,235.49x = 30,366.87 × 7,087.98
  4. Step 4: Simplify right side
    20,235.49x = 215,239,767.22
  5. Step 5: Solve for x
    x = 215,239,767.22/20,235.49
  6. Step 6: Final answer
    x = 10,636.75

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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.