Home / 30,914.23-42,661.70-16,767.07

Finding the Fourth Proportional to 30,914.23, 42,661.70 and 16,767.07

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Solution

The fourth proportional to 30,914.23, 42,661.70 and 16,767.07 is: 23,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,914.23 : 42,661.70 = 16,767.07 : x
  2. Step 2: Convert to fraction form
    30,914.23/42,661.70 = 16,767.07/x
  3. Step 3: Cross multiply
    30,914.23x = 42,661.70 × 16,767.07
  4. Step 4: Simplify right side
    30,914.23x = 715,311,626.38
  5. Step 5: Solve for x
    x = 715,311,626.38/30,914.23
  6. Step 6: Final answer
    x = 23,138.59

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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.