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Finding the Fourth Proportional to 28,894.90, 43,338.63 and 9,173.68

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Solution

The fourth proportional to 28,894.90, 43,338.63 and 9,173.68 is: 13,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,894.90 : 43,338.63 = 9,173.68 : x
  2. Step 2: Convert to fraction form
    28,894.90/43,338.63 = 9,173.68/x
  3. Step 3: Cross multiply
    28,894.90x = 43,338.63 × 9,173.68
  4. Step 4: Simplify right side
    28,894.90x = 397,574,723.26
  5. Step 5: Solve for x
    x = 397,574,723.26/28,894.90
  6. Step 6: Final answer
    x = 13,759.34

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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.