Home / 39,657.23-54,726.62-21,751.91

Finding the Fourth Proportional to 39,657.23, 54,726.62 and 21,751.91

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Solution

The fourth proportional to 39,657.23, 54,726.62 and 21,751.91 is: 30,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,657.23 : 54,726.62 = 21,751.91 : x
  2. Step 2: Convert to fraction form
    39,657.23/54,726.62 = 21,751.91/x
  3. Step 3: Cross multiply
    39,657.23x = 54,726.62 × 21,751.91
  4. Step 4: Simplify right side
    39,657.23x = 1,190,408,130.45
  5. Step 5: Solve for x
    x = 1,190,408,130.45/39,657.23
  6. Step 6: Final answer
    x = 30,017.43

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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.