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Finding the Fourth Proportional to 30,607.02, 45,904.46 and 8,414.66

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Solution

The fourth proportional to 30,607.02, 45,904.46 and 8,414.66 is: 12,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,607.02 : 45,904.46 = 8,414.66 : x
  2. Step 2: Convert to fraction form
    30,607.02/45,904.46 = 8,414.66/x
  3. Step 3: Cross multiply
    30,607.02x = 45,904.46 × 8,414.66
  4. Step 4: Simplify right side
    30,607.02x = 386,270,423.38
  5. Step 5: Solve for x
    x = 386,270,423.38/30,607.02
  6. Step 6: Final answer
    x = 12,620.32

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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.