Home / 20,390.89-30,583.05-5,596.35

Finding the Fourth Proportional to 20,390.89, 30,583.05 and 5,596.35

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Solution

The fourth proportional to 20,390.89, 30,583.05 and 5,596.35 is: 8,393.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.89 : 30,583.05 = 5,596.35 : x
  2. Step 2: Convert to fraction form
    20,390.89/30,583.05 = 5,596.35/x
  3. Step 3: Cross multiply
    20,390.89x = 30,583.05 × 5,596.35
  4. Step 4: Simplify right side
    20,390.89x = 171,153,451.87
  5. Step 5: Solve for x
    x = 171,153,451.87/20,390.89
  6. Step 6: Final answer
    x = 8,393.62

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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.