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Finding the Fourth Proportional to 30,383.66, 45,575.88 and 10,662.80

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Solution

The fourth proportional to 30,383.66, 45,575.88 and 10,662.80 is: 15,994.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.66 : 45,575.88 = 10,662.80 : x
  2. Step 2: Convert to fraction form
    30,383.66/45,575.88 = 10,662.80/x
  3. Step 3: Cross multiply
    30,383.66x = 45,575.88 × 10,662.80
  4. Step 4: Simplify right side
    30,383.66x = 485,966,493.26
  5. Step 5: Solve for x
    x = 485,966,493.26/30,383.66
  6. Step 6: Final answer
    x = 15,994.34

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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.