Home / 28,974.51-43,477.56-19,118.43

Finding the Fourth Proportional to 28,974.51, 43,477.56 and 19,118.43

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Solution

The fourth proportional to 28,974.51, 43,477.56 and 19,118.43 is: 28,688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.51 : 43,477.56 = 19,118.43 : x
  2. Step 2: Convert to fraction form
    28,974.51/43,477.56 = 19,118.43/x
  3. Step 3: Cross multiply
    28,974.51x = 43,477.56 × 19,118.43
  4. Step 4: Simplify right side
    28,974.51x = 831,222,687.43
  5. Step 5: Solve for x
    x = 831,222,687.43/28,974.51
  6. Step 6: Final answer
    x = 28,688.07

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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.