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Finding the Fourth Proportional to 30,900.80, 46,340.40 and 16,104.80

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Solution

The fourth proportional to 30,900.80, 46,340.40 and 16,104.80 is: 24,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,900.80 : 46,340.40 = 16,104.80 : x
  2. Step 2: Convert to fraction form
    30,900.80/46,340.40 = 16,104.80/x
  3. Step 3: Cross multiply
    30,900.80x = 46,340.40 × 16,104.80
  4. Step 4: Simplify right side
    30,900.80x = 746,302,873.92
  5. Step 5: Solve for x
    x = 746,302,873.92/30,900.80
  6. Step 6: Final answer
    x = 24,151.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.