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Finding the Fourth Proportional to 30,195.20, 45,203.20 and 22,438.40

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Solution

The fourth proportional to 30,195.20, 45,203.20 and 22,438.40 is: 33,591.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,195.20 : 45,203.20 = 22,438.40 : x
  2. Step 2: Convert to fraction form
    30,195.20/45,203.20 = 22,438.40/x
  3. Step 3: Cross multiply
    30,195.20x = 45,203.20 × 22,438.40
  4. Step 4: Simplify right side
    30,195.20x = 1,014,287,482.88
  5. Step 5: Solve for x
    x = 1,014,287,482.88/30,195.20
  6. Step 6: Final answer
    x = 33,591.02

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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.