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Finding the Fourth Proportional to 30,560.81, 45,830.27 and 16,531.20

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Solution

The fourth proportional to 30,560.81, 45,830.27 and 16,531.20 is: 24,790.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.81 : 45,830.27 = 16,531.20 : x
  2. Step 2: Convert to fraction form
    30,560.81/45,830.27 = 16,531.20/x
  3. Step 3: Cross multiply
    30,560.81x = 45,830.27 × 16,531.20
  4. Step 4: Simplify right side
    30,560.81x = 757,629,400.75
  5. Step 5: Solve for x
    x = 757,629,400.75/30,560.81
  6. Step 6: Final answer
    x = 24,790.88

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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.