Home / 19,337.78-28,957.44-12,743.97

Finding the Fourth Proportional to 19,337.78, 28,957.44 and 12,743.97

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Solution

The fourth proportional to 19,337.78, 28,957.44 and 12,743.97 is: 19,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,337.78 : 28,957.44 = 12,743.97 : x
  2. Step 2: Convert to fraction form
    19,337.78/28,957.44 = 12,743.97/x
  3. Step 3: Cross multiply
    19,337.78x = 28,957.44 × 12,743.97
  4. Step 4: Simplify right side
    19,337.78x = 369,032,746.64
  5. Step 5: Solve for x
    x = 369,032,746.64/19,337.78
  6. Step 6: Final answer
    x = 19,083.52

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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.