Home / 30,966.26-42,733.91-16,819.09

Finding the Fourth Proportional to 30,966.26, 42,733.91 and 16,819.09

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Solution

The fourth proportional to 30,966.26, 42,733.91 and 16,819.09 is: 23,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,966.26 : 42,733.91 = 16,819.09 : x
  2. Step 2: Convert to fraction form
    30,966.26/42,733.91 = 16,819.09/x
  3. Step 3: Cross multiply
    30,966.26x = 42,733.91 × 16,819.09
  4. Step 4: Simplify right side
    30,966.26x = 718,745,413.55
  5. Step 5: Solve for x
    x = 718,745,413.55/30,966.26
  6. Step 6: Final answer
    x = 23,210.60

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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.