Home / 19,330.31-28,946.23-12,736.51

Finding the Fourth Proportional to 19,330.31, 28,946.23 and 12,736.51

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Solution

The fourth proportional to 19,330.31, 28,946.23 and 12,736.51 is: 19,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.31 : 28,946.23 = 12,736.51 : x
  2. Step 2: Convert to fraction form
    19,330.31/28,946.23 = 12,736.51/x
  3. Step 3: Cross multiply
    19,330.31x = 28,946.23 × 12,736.51
  4. Step 4: Simplify right side
    19,330.31x = 368,673,739.44
  5. Step 5: Solve for x
    x = 368,673,739.44/19,330.31
  6. Step 6: Final answer
    x = 19,072.32

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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.