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Finding the Fourth Proportional to 30,844.60, 46,266.90 and 19,007.80

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Solution

The fourth proportional to 30,844.60, 46,266.90 and 19,007.80 is: 28,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,844.60 : 46,266.90 = 19,007.80 : x
  2. Step 2: Convert to fraction form
    30,844.60/46,266.90 = 19,007.80/x
  3. Step 3: Cross multiply
    30,844.60x = 46,266.90 × 19,007.80
  4. Step 4: Simplify right side
    30,844.60x = 879,431,981.82
  5. Step 5: Solve for x
    x = 879,431,981.82/30,844.60
  6. Step 6: Final answer
    x = 28,511.70

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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.