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Finding the Fourth Proportional to 30,168.34, 45,191.94 and 14,388.64

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Solution

The fourth proportional to 30,168.34, 45,191.94 and 14,388.64 is: 21,554.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.34 : 45,191.94 = 14,388.64 : x
  2. Step 2: Convert to fraction form
    30,168.34/45,191.94 = 14,388.64/x
  3. Step 3: Cross multiply
    30,168.34x = 45,191.94 × 14,388.64
  4. Step 4: Simplify right side
    30,168.34x = 650,250,555.56
  5. Step 5: Solve for x
    x = 650,250,555.56/30,168.34
  6. Step 6: Final answer
    x = 21,554.07

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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.