Home / 28,696.51-43,043.14-8,972.74

Finding the Fourth Proportional to 28,696.51, 43,043.14 and 8,972.74

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Solution

The fourth proportional to 28,696.51, 43,043.14 and 8,972.74 is: 13,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.51 : 43,043.14 = 8,972.74 : x
  2. Step 2: Convert to fraction form
    28,696.51/43,043.14 = 8,972.74/x
  3. Step 3: Cross multiply
    28,696.51x = 43,043.14 × 8,972.74
  4. Step 4: Simplify right side
    28,696.51x = 386,214,904.00
  5. Step 5: Solve for x
    x = 386,214,904.00/28,696.51
  6. Step 6: Final answer
    x = 13,458.60

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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.