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Finding the Fourth Proportional to 30,441.70, 45,662.55 and 25,630.30

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Solution

The fourth proportional to 30,441.70, 45,662.55 and 25,630.30 is: 38,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,441.70 : 45,662.55 = 25,630.30 : x
  2. Step 2: Convert to fraction form
    30,441.70/45,662.55 = 25,630.30/x
  3. Step 3: Cross multiply
    30,441.70x = 45,662.55 × 25,630.30
  4. Step 4: Simplify right side
    30,441.70x = 1,170,344,855.27
  5. Step 5: Solve for x
    x = 1,170,344,855.27/30,441.70
  6. Step 6: Final answer
    x = 38,445.45

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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.