Home / 20,409.80-30,586.19-11,029.59

Finding the Fourth Proportional to 20,409.80, 30,586.19 and 11,029.59

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Solution

The fourth proportional to 20,409.80, 30,586.19 and 11,029.59 is: 16,528.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409.80 : 30,586.19 = 11,029.59 : x
  2. Step 2: Convert to fraction form
    20,409.80/30,586.19 = 11,029.59/x
  3. Step 3: Cross multiply
    20,409.80x = 30,586.19 × 11,029.59
  4. Step 4: Simplify right side
    20,409.80x = 337,353,156.68
  5. Step 5: Solve for x
    x = 337,353,156.68/20,409.80
  6. Step 6: Final answer
    x = 16,528.98

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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.