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Finding the Fourth Proportional to 30,662.78, 45,988.34 and 9,599.63

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Solution

The fourth proportional to 30,662.78, 45,988.34 and 9,599.63 is: 14,397.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,662.78 : 45,988.34 = 9,599.63 : x
  2. Step 2: Convert to fraction form
    30,662.78/45,988.34 = 9,599.63/x
  3. Step 3: Cross multiply
    30,662.78x = 45,988.34 × 9,599.63
  4. Step 4: Simplify right side
    30,662.78x = 441,470,770.37
  5. Step 5: Solve for x
    x = 441,470,770.37/30,662.78
  6. Step 6: Final answer
    x = 14,397.61

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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.