Home / 20,225.89-30,336-8,536.38

Finding the Fourth Proportional to 20,225.89, 30,336 and 8,536.38

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Solution

The fourth proportional to 20,225.89, 30,336 and 8,536.38 is: 12,803.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.89 : 30,336 = 8,536.38 : x
  2. Step 2: Convert to fraction form
    20,225.89/30,336 = 8,536.38/x
  3. Step 3: Cross multiply
    20,225.89x = 30,336 × 8,536.38
  4. Step 4: Simplify right side
    20,225.89x = 258,959,472
  5. Step 5: Solve for x
    x = 258,959,472/20,225.89
  6. Step 6: Final answer
    x = 12,803.37

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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.