Home / 28,923,726.48-39,838,120.56-21,557,954.28

Finding the Fourth Proportional to 28,923,726.48, 39,838,120.56 and 21,557,954.28

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Solution

The fourth proportional to 28,923,726.48, 39,838,120.56 and 21,557,954.28 is: 29,692,867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923,726.48 : 39,838,120.56 = 21,557,954.28 : x
  2. Step 2: Convert to fraction form
    28,923,726.48/39,838,120.56 = 21,557,954.28/x
  3. Step 3: Cross multiply
    28,923,726.48x = 39,838,120.56 × 21,557,954.28
  4. Step 4: Simplify right side
    28,923,726.48x = 858,828,381,633,608.12
  5. Step 5: Solve for x
    x = 858,828,381,633,608.12/28,923,726.48
  6. Step 6: Final answer
    x = 29,692,867.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.