Home / 20,384.16-30,580.83-7,236.54

Finding the Fourth Proportional to 20,384.16, 30,580.83 and 7,236.54

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Solution

The fourth proportional to 20,384.16, 30,580.83 and 7,236.54 is: 10,856.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.16 : 30,580.83 = 7,236.54 : x
  2. Step 2: Convert to fraction form
    20,384.16/30,580.83 = 7,236.54/x
  3. Step 3: Cross multiply
    20,384.16x = 30,580.83 × 7,236.54
  4. Step 4: Simplify right side
    20,384.16x = 221,299,399.53
  5. Step 5: Solve for x
    x = 221,299,399.53/20,384.16
  6. Step 6: Final answer
    x = 10,856.44

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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.