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Finding the Fourth Proportional to 30,041.97, 45,063.11 and 7,855.39

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Solution

The fourth proportional to 30,041.97, 45,063.11 and 7,855.39 is: 11,783.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.97 : 45,063.11 = 7,855.39 : x
  2. Step 2: Convert to fraction form
    30,041.97/45,063.11 = 7,855.39/x
  3. Step 3: Cross multiply
    30,041.97x = 45,063.11 × 7,855.39
  4. Step 4: Simplify right side
    30,041.97x = 353,988,451.14
  5. Step 5: Solve for x
    x = 353,988,451.14/30,041.97
  6. Step 6: Final answer
    x = 11,783.13

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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.