Home / 30,147.16-41,622.60-19,396.84

Finding the Fourth Proportional to 30,147.16, 41,622.60 and 19,396.84

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Solution

The fourth proportional to 30,147.16, 41,622.60 and 19,396.84 is: 26,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147.16 : 41,622.60 = 19,396.84 : x
  2. Step 2: Convert to fraction form
    30,147.16/41,622.60 = 19,396.84/x
  3. Step 3: Cross multiply
    30,147.16x = 41,622.60 × 19,396.84
  4. Step 4: Simplify right side
    30,147.16x = 807,346,912.58
  5. Step 5: Solve for x
    x = 807,346,912.58/30,147.16
  6. Step 6: Final answer
    x = 26,780.20

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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.