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Finding the Fourth Proportional to 30,134.70, 45,200.43 and 14,504.94

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Solution

The fourth proportional to 30,134.70, 45,200.43 and 14,504.94 is: 21,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,134.70 : 45,200.43 = 14,504.94 : x
  2. Step 2: Convert to fraction form
    30,134.70/45,200.43 = 14,504.94/x
  3. Step 3: Cross multiply
    30,134.70x = 45,200.43 × 14,504.94
  4. Step 4: Simplify right side
    30,134.70x = 655,629,525.12
  5. Step 5: Solve for x
    x = 655,629,525.12/30,134.70
  6. Step 6: Final answer
    x = 21,756.63

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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.