Home / 20,020.40-30,034.36-6,874.64

Finding the Fourth Proportional to 20,020.40, 30,034.36 and 6,874.64

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Solution

The fourth proportional to 20,020.40, 30,034.36 and 6,874.64 is: 10,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.40 : 30,034.36 = 6,874.64 : x
  2. Step 2: Convert to fraction form
    20,020.40/30,034.36 = 6,874.64/x
  3. Step 3: Cross multiply
    20,020.40x = 30,034.36 × 6,874.64
  4. Step 4: Simplify right side
    20,020.40x = 206,475,412.63
  5. Step 5: Solve for x
    x = 206,475,412.63/20,020.40
  6. Step 6: Final answer
    x = 10,313.25

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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.