Home / 30,245.04-41,739.22-16,820.10

Finding the Fourth Proportional to 30,245.04, 41,739.22 and 16,820.10

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Solution

The fourth proportional to 30,245.04, 41,739.22 and 16,820.10 is: 23,212.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.04 : 41,739.22 = 16,820.10 : x
  2. Step 2: Convert to fraction form
    30,245.04/41,739.22 = 16,820.10/x
  3. Step 3: Cross multiply
    30,245.04x = 41,739.22 × 16,820.10
  4. Step 4: Simplify right side
    30,245.04x = 702,057,645.63
  5. Step 5: Solve for x
    x = 702,057,645.63/30,245.04
  6. Step 6: Final answer
    x = 23,212.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.