Home / 30,383.90-41,942.57-18,451.08

Finding the Fourth Proportional to 30,383.90, 41,942.57 and 18,451.08

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Solution

The fourth proportional to 30,383.90, 41,942.57 and 18,451.08 is: 25,470.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.90 : 41,942.57 = 18,451.08 : x
  2. Step 2: Convert to fraction form
    30,383.90/41,942.57 = 18,451.08/x
  3. Step 3: Cross multiply
    30,383.90x = 41,942.57 × 18,451.08
  4. Step 4: Simplify right side
    30,383.90x = 773,885,714.48
  5. Step 5: Solve for x
    x = 773,885,714.48/30,383.90
  6. Step 6: Final answer
    x = 25,470.26

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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.