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Finding the Fourth Proportional to 30,968.88, 46,436.91 and 12,248.16

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Solution

The fourth proportional to 30,968.88, 46,436.91 and 12,248.16 is: 18,365.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,968.88 : 46,436.91 = 12,248.16 : x
  2. Step 2: Convert to fraction form
    30,968.88/46,436.91 = 12,248.16/x
  3. Step 3: Cross multiply
    30,968.88x = 46,436.91 × 12,248.16
  4. Step 4: Simplify right side
    30,968.88x = 568,766,703.59
  5. Step 5: Solve for x
    x = 568,766,703.59/30,968.88
  6. Step 6: Final answer
    x = 18,365.75

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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.