Home / 20,287.81-30,433.24-5,496.50

Finding the Fourth Proportional to 20,287.81, 30,433.24 and 5,496.50

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Solution

The fourth proportional to 20,287.81, 30,433.24 and 5,496.50 is: 8,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.81 : 30,433.24 = 5,496.50 : x
  2. Step 2: Convert to fraction form
    20,287.81/30,433.24 = 5,496.50/x
  3. Step 3: Cross multiply
    20,287.81x = 30,433.24 × 5,496.50
  4. Step 4: Simplify right side
    20,287.81x = 167,276,303.66
  5. Step 5: Solve for x
    x = 167,276,303.66/20,287.81
  6. Step 6: Final answer
    x = 8,245.16

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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.