Home / 39,813.54-59,634.19-18,721.98

Finding the Fourth Proportional to 39,813.54, 59,634.19 and 18,721.98

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Solution

The fourth proportional to 39,813.54, 59,634.19 and 18,721.98 is: 28,042.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,813.54 : 59,634.19 = 18,721.98 : x
  2. Step 2: Convert to fraction form
    39,813.54/59,634.19 = 18,721.98/x
  3. Step 3: Cross multiply
    39,813.54x = 59,634.19 × 18,721.98
  4. Step 4: Simplify right side
    39,813.54x = 1,116,470,018.89
  5. Step 5: Solve for x
    x = 1,116,470,018.89/39,813.54
  6. Step 6: Final answer
    x = 28,042.47

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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.