Home / 20,104.48-30,156.79-8,409.49

Finding the Fourth Proportional to 20,104.48, 30,156.79 and 8,409.49

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Solution

The fourth proportional to 20,104.48, 30,156.79 and 8,409.49 is: 12,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.48 : 30,156.79 = 8,409.49 : x
  2. Step 2: Convert to fraction form
    20,104.48/30,156.79 = 8,409.49/x
  3. Step 3: Cross multiply
    20,104.48x = 30,156.79 × 8,409.49
  4. Step 4: Simplify right side
    20,104.48x = 253,603,223.94
  5. Step 5: Solve for x
    x = 253,603,223.94/20,104.48
  6. Step 6: Final answer
    x = 12,614.26

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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.