Home / 30,230.42-41,705.03-18,880.21

Finding the Fourth Proportional to 30,230.42, 41,705.03 and 18,880.21

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Solution

The fourth proportional to 30,230.42, 41,705.03 and 18,880.21 is: 26,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.42 : 41,705.03 = 18,880.21 : x
  2. Step 2: Convert to fraction form
    30,230.42/41,705.03 = 18,880.21/x
  3. Step 3: Cross multiply
    30,230.42x = 41,705.03 × 18,880.21
  4. Step 4: Simplify right side
    30,230.42x = 787,399,724.46
  5. Step 5: Solve for x
    x = 787,399,724.46/30,230.42
  6. Step 6: Final answer
    x = 26,046.60

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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.