Home / 20,203.39-30,271.67-10,329.09

Finding the Fourth Proportional to 20,203.39, 30,271.67 and 10,329.09

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Solution

The fourth proportional to 20,203.39, 30,271.67 and 10,329.09 is: 15,476.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.39 : 30,271.67 = 10,329.09 : x
  2. Step 2: Convert to fraction form
    20,203.39/30,271.67 = 10,329.09/x
  3. Step 3: Cross multiply
    20,203.39x = 30,271.67 × 10,329.09
  4. Step 4: Simplify right side
    20,203.39x = 312,678,652.52
  5. Step 5: Solve for x
    x = 312,678,652.52/20,203.39
  6. Step 6: Final answer
    x = 15,476.54

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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.