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Finding the Fourth Proportional to 28,949.63, 43,429.93 and 9,969.22

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Solution

The fourth proportional to 28,949.63, 43,429.93 and 9,969.22 is: 14,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,949.63 : 43,429.93 = 9,969.22 : x
  2. Step 2: Convert to fraction form
    28,949.63/43,429.93 = 9,969.22/x
  3. Step 3: Cross multiply
    28,949.63x = 43,429.93 × 9,969.22
  4. Step 4: Simplify right side
    28,949.63x = 432,962,393.26
  5. Step 5: Solve for x
    x = 432,962,393.26/28,949.63
  6. Step 6: Final answer
    x = 14,955.71

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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.