Home / 20,404.10-30,582.45-11,645.16

Finding the Fourth Proportional to 20,404.10, 30,582.45 and 11,645.16

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Solution

The fourth proportional to 20,404.10, 30,582.45 and 11,645.16 is: 17,454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.10 : 30,582.45 = 11,645.16 : x
  2. Step 2: Convert to fraction form
    20,404.10/30,582.45 = 11,645.16/x
  3. Step 3: Cross multiply
    20,404.10x = 30,582.45 × 11,645.16
  4. Step 4: Simplify right side
    20,404.10x = 356,137,523.44
  5. Step 5: Solve for x
    x = 356,137,523.44/20,404.10
  6. Step 6: Final answer
    x = 17,454.22

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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.