Home / 20,260.85-30,384.71-6,748.43

Finding the Fourth Proportional to 20,260.85, 30,384.71 and 6,748.43

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Solution

The fourth proportional to 20,260.85, 30,384.71 and 6,748.43 is: 10,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.85 : 30,384.71 = 6,748.43 : x
  2. Step 2: Convert to fraction form
    20,260.85/30,384.71 = 6,748.43/x
  3. Step 3: Cross multiply
    20,260.85x = 30,384.71 × 6,748.43
  4. Step 4: Simplify right side
    20,260.85x = 205,048,902.84
  5. Step 5: Solve for x
    x = 205,048,902.84/20,260.85
  6. Step 6: Final answer
    x = 10,120.45

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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.