Home / 30,883.12-42,618.84-16,736

Finding the Fourth Proportional to 30,883.12, 42,618.84 and 16,736

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Solution

The fourth proportional to 30,883.12, 42,618.84 and 16,736 is: 23,095.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,883.12 : 42,618.84 = 16,736 : x
  2. Step 2: Convert to fraction form
    30,883.12/42,618.84 = 16,736/x
  3. Step 3: Cross multiply
    30,883.12x = 42,618.84 × 16,736
  4. Step 4: Simplify right side
    30,883.12x = 713,268,906.24
  5. Step 5: Solve for x
    x = 713,268,906.24/30,883.12
  6. Step 6: Final answer
    x = 23,095.75

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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.