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Finding the Fourth Proportional to 30,208.70, 45,223.45 and 22,451.90

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Solution

The fourth proportional to 30,208.70, 45,223.45 and 22,451.90 is: 33,611.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,208.70 : 45,223.45 = 22,451.90 : x
  2. Step 2: Convert to fraction form
    30,208.70/45,223.45 = 22,451.90/x
  3. Step 3: Cross multiply
    30,208.70x = 45,223.45 × 22,451.90
  4. Step 4: Simplify right side
    30,208.70x = 1,015,352,377.06
  5. Step 5: Solve for x
    x = 1,015,352,377.06/30,208.70
  6. Step 6: Final answer
    x = 33,611.26

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1.5x scale

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.