Home / 30,418.38-41,974.63-16,987.77

Finding the Fourth Proportional to 30,418.38, 41,974.63 and 16,987.77

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Solution

The fourth proportional to 30,418.38, 41,974.63 and 16,987.77 is: 23,441.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.38 : 41,974.63 = 16,987.77 : x
  2. Step 2: Convert to fraction form
    30,418.38/41,974.63 = 16,987.77/x
  3. Step 3: Cross multiply
    30,418.38x = 41,974.63 × 16,987.77
  4. Step 4: Simplify right side
    30,418.38x = 713,055,317.81
  5. Step 5: Solve for x
    x = 713,055,317.81/30,418.38
  6. Step 6: Final answer
    x = 23,441.59

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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.