Home / 30,917.49-42,664.97-16,770.03

Finding the Fourth Proportional to 30,917.49, 42,664.97 and 16,770.03

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Solution

The fourth proportional to 30,917.49, 42,664.97 and 16,770.03 is: 23,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,917.49 : 42,664.97 = 16,770.03 : x
  2. Step 2: Convert to fraction form
    30,917.49/42,664.97 = 16,770.03/x
  3. Step 3: Cross multiply
    30,917.49x = 42,664.97 × 16,770.03
  4. Step 4: Simplify right side
    30,917.49x = 715,492,743.00
  5. Step 5: Solve for x
    x = 715,492,743.00/30,917.49
  6. Step 6: Final answer
    x = 23,142.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.