Home / 26,802.72-36,990-15,625.44

Finding the Fourth Proportional to 26,802.72, 36,990 and 15,625.44

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Solution

The fourth proportional to 26,802.72, 36,990 and 15,625.44 is: 21,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,802.72 : 36,990 = 15,625.44 : x
  2. Step 2: Convert to fraction form
    26,802.72/36,990 = 15,625.44/x
  3. Step 3: Cross multiply
    26,802.72x = 36,990 × 15,625.44
  4. Step 4: Simplify right side
    26,802.72x = 577,985,025.60
  5. Step 5: Solve for x
    x = 577,985,025.60/26,802.72
  6. Step 6: Final answer
    x = 21,564.42

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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.