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Finding the Fourth Proportional to 30,607.26, 45,904.85 and 8,414.91

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Solution

The fourth proportional to 30,607.26, 45,904.85 and 8,414.91 is: 12,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,607.26 : 45,904.85 = 8,414.91 : x
  2. Step 2: Convert to fraction form
    30,607.26/45,904.85 = 8,414.91/x
  3. Step 3: Cross multiply
    30,607.26x = 45,904.85 × 8,414.91
  4. Step 4: Simplify right side
    30,607.26x = 386,285,139.24
  5. Step 5: Solve for x
    x = 386,285,139.24/30,607.26
  6. Step 6: Final answer
    x = 12,620.70

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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.