Home / 30,238.38-41,714.43-19,631.34

Finding the Fourth Proportional to 30,238.38, 41,714.43 and 19,631.34

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Solution

The fourth proportional to 30,238.38, 41,714.43 and 19,631.34 is: 27,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.38 : 41,714.43 = 19,631.34 : x
  2. Step 2: Convert to fraction form
    30,238.38/41,714.43 = 19,631.34/x
  3. Step 3: Cross multiply
    30,238.38x = 41,714.43 × 19,631.34
  4. Step 4: Simplify right side
    30,238.38x = 818,910,158.24
  5. Step 5: Solve for x
    x = 818,910,158.24/30,238.38
  6. Step 6: Final answer
    x = 27,081.81

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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.