Home / 30,698.35-42,366.18-17,268.80

Finding the Fourth Proportional to 30,698.35, 42,366.18 and 17,268.80

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Solution

The fourth proportional to 30,698.35, 42,366.18 and 17,268.80 is: 23,832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,698.35 : 42,366.18 = 17,268.80 : x
  2. Step 2: Convert to fraction form
    30,698.35/42,366.18 = 17,268.80/x
  3. Step 3: Cross multiply
    30,698.35x = 42,366.18 × 17,268.80
  4. Step 4: Simplify right side
    30,698.35x = 731,613,067.60
  5. Step 5: Solve for x
    x = 731,613,067.60/30,698.35
  6. Step 6: Final answer
    x = 23,832.33

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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.