Home / 19,866.51-29,939.31-17,894.61

Finding the Fourth Proportional to 19,866.51, 29,939.31 and 17,894.61

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Solution

The fourth proportional to 19,866.51, 29,939.31 and 17,894.61 is: 26,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.51 : 29,939.31 = 17,894.61 : x
  2. Step 2: Convert to fraction form
    19,866.51/29,939.31 = 17,894.61/x
  3. Step 3: Cross multiply
    19,866.51x = 29,939.31 × 17,894.61
  4. Step 4: Simplify right side
    19,866.51x = 535,752,320.86
  5. Step 5: Solve for x
    x = 535,752,320.86/19,866.51
  6. Step 6: Final answer
    x = 26,967.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.