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Finding the Fourth Proportional to 28,994.76, 43,499.42 and 8,218.26

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Solution

The fourth proportional to 28,994.76, 43,499.42 and 8,218.26 is: 12,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,994.76 : 43,499.42 = 8,218.26 : x
  2. Step 2: Convert to fraction form
    28,994.76/43,499.42 = 8,218.26/x
  3. Step 3: Cross multiply
    28,994.76x = 43,499.42 × 8,218.26
  4. Step 4: Simplify right side
    28,994.76x = 357,489,543.41
  5. Step 5: Solve for x
    x = 357,489,543.41/28,994.76
  6. Step 6: Final answer
    x = 12,329.45

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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.