Home / 20,260.47-30,384.59-5,469.56

Finding the Fourth Proportional to 20,260.47, 30,384.59 and 5,469.56

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Solution

The fourth proportional to 20,260.47, 30,384.59 and 5,469.56 is: 8,202.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.47 : 30,384.59 = 5,469.56 : x
  2. Step 2: Convert to fraction form
    20,260.47/30,384.59 = 5,469.56/x
  3. Step 3: Cross multiply
    20,260.47x = 30,384.59 × 5,469.56
  4. Step 4: Simplify right side
    20,260.47x = 166,190,158.81
  5. Step 5: Solve for x
    x = 166,190,158.81/20,260.47
  6. Step 6: Final answer
    x = 8,202.68

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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.