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Finding the Fourth Proportional to 35,802.72, 49,399.80 and 21,655.26

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Solution

The fourth proportional to 35,802.72, 49,399.80 and 21,655.26 is: 29,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,802.72 : 49,399.80 = 21,655.26 : x
  2. Step 2: Convert to fraction form
    35,802.72/49,399.80 = 21,655.26/x
  3. Step 3: Cross multiply
    35,802.72x = 49,399.80 × 21,655.26
  4. Step 4: Simplify right side
    35,802.72x = 1,069,765,512.95
  5. Step 5: Solve for x
    x = 1,069,765,512.95/35,802.72
  6. Step 6: Final answer
    x = 29,879.45

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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.