Home / 30,992.24-42,768.16-16,844.80

Finding the Fourth Proportional to 30,992.24, 42,768.16 and 16,844.80

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Solution

The fourth proportional to 30,992.24, 42,768.16 and 16,844.80 is: 23,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,992.24 : 42,768.16 = 16,844.80 : x
  2. Step 2: Convert to fraction form
    30,992.24/42,768.16 = 16,844.80/x
  3. Step 3: Cross multiply
    30,992.24x = 42,768.16 × 16,844.80
  4. Step 4: Simplify right side
    30,992.24x = 720,421,101.57
  5. Step 5: Solve for x
    x = 720,421,101.57/30,992.24
  6. Step 6: Final answer
    x = 23,245.21

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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.