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Finding the Fourth Proportional to 30,022.80, 45,066.60 and 16,900.80

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Solution

The fourth proportional to 30,022.80, 45,066.60 and 16,900.80 is: 25,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,022.80 : 45,066.60 = 16,900.80 : x
  2. Step 2: Convert to fraction form
    30,022.80/45,066.60 = 16,900.80/x
  3. Step 3: Cross multiply
    30,022.80x = 45,066.60 × 16,900.80
  4. Step 4: Simplify right side
    30,022.80x = 761,661,593.28
  5. Step 5: Solve for x
    x = 761,661,593.28/30,022.80
  6. Step 6: Final answer
    x = 25,369.44

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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.