Home / 30,640.21-45,954.82-8,151.01

Finding the Fourth Proportional to 30,640.21, 45,954.82 and 8,151.01

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Solution

The fourth proportional to 30,640.21, 45,954.82 and 8,151.01 is: 12,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640.21 : 45,954.82 = 8,151.01 : x
  2. Step 2: Convert to fraction form
    30,640.21/45,954.82 = 8,151.01/x
  3. Step 3: Cross multiply
    30,640.21x = 45,954.82 × 8,151.01
  4. Step 4: Simplify right side
    30,640.21x = 374,578,092.67
  5. Step 5: Solve for x
    x = 374,578,092.67/30,640.21
  6. Step 6: Final answer
    x = 12,225.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.