Home / 30,550.26-42,155.04-17,120.46

Finding the Fourth Proportional to 30,550.26, 42,155.04 and 17,120.46

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Solution

The fourth proportional to 30,550.26, 42,155.04 and 17,120.46 is: 23,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,550.26 : 42,155.04 = 17,120.46 : x
  2. Step 2: Convert to fraction form
    30,550.26/42,155.04 = 17,120.46/x
  3. Step 3: Cross multiply
    30,550.26x = 42,155.04 × 17,120.46
  4. Step 4: Simplify right side
    30,550.26x = 721,713,676.12
  5. Step 5: Solve for x
    x = 721,713,676.12/30,550.26
  6. Step 6: Final answer
    x = 23,623.81

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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.