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Finding the Fourth Proportional to 30,541.95, 45,814.32 and 8,354.85

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Solution

The fourth proportional to 30,541.95, 45,814.32 and 8,354.85 is: 12,532.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,541.95 : 45,814.32 = 8,354.85 : x
  2. Step 2: Convert to fraction form
    30,541.95/45,814.32 = 8,354.85/x
  3. Step 3: Cross multiply
    30,541.95x = 45,814.32 × 8,354.85
  4. Step 4: Simplify right side
    30,541.95x = 382,771,771.45
  5. Step 5: Solve for x
    x = 382,771,771.45/30,541.95
  6. Step 6: Final answer
    x = 12,532.66

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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.