Home / 20,409.55-30,585.81-11,029.34

Finding the Fourth Proportional to 20,409.55, 30,585.81 and 11,029.34

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Solution

The fourth proportional to 20,409.55, 30,585.81 and 11,029.34 is: 16,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409.55 : 30,585.81 = 11,029.34 : x
  2. Step 2: Convert to fraction form
    20,409.55/30,585.81 = 11,029.34/x
  3. Step 3: Cross multiply
    20,409.55x = 30,585.81 × 11,029.34
  4. Step 4: Simplify right side
    20,409.55x = 337,341,374.13
  5. Step 5: Solve for x
    x = 337,341,374.13/20,409.55
  6. Step 6: Final answer
    x = 16,528.61

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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.