Home / 30,920.94-42,670.44-16,773.57

Finding the Fourth Proportional to 30,920.94, 42,670.44 and 16,773.57

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Solution

The fourth proportional to 30,920.94, 42,670.44 and 16,773.57 is: 23,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.94 : 42,670.44 = 16,773.57 : x
  2. Step 2: Convert to fraction form
    30,920.94/42,670.44 = 16,773.57/x
  3. Step 3: Cross multiply
    30,920.94x = 42,670.44 × 16,773.57
  4. Step 4: Simplify right side
    30,920.94x = 715,735,612.27
  5. Step 5: Solve for x
    x = 715,735,612.27/30,920.94
  6. Step 6: Final answer
    x = 23,147.28

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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.