Home / 30,201.22-41,678.13-18,262.45

Finding the Fourth Proportional to 30,201.22, 41,678.13 and 18,262.45

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Solution

The fourth proportional to 30,201.22, 41,678.13 and 18,262.45 is: 25,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.22 : 41,678.13 = 18,262.45 : x
  2. Step 2: Convert to fraction form
    30,201.22/41,678.13 = 18,262.45/x
  3. Step 3: Cross multiply
    30,201.22x = 41,678.13 × 18,262.45
  4. Step 4: Simplify right side
    30,201.22x = 761,144,765.22
  5. Step 5: Solve for x
    x = 761,144,765.22/30,201.22
  6. Step 6: Final answer
    x = 25,202.45

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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.