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Finding the Fourth Proportional to 26,670, 36,804.60 and 15,498.48

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Solution

The fourth proportional to 26,670, 36,804.60 and 15,498.48 is: 21,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,670 : 36,804.60 = 15,498.48 : x
  2. Step 2: Convert to fraction form
    26,670/36,804.60 = 15,498.48/x
  3. Step 3: Cross multiply
    26,670x = 36,804.60 × 15,498.48
  4. Step 4: Simplify right side
    26,670x = 570,415,357.01
  5. Step 5: Solve for x
    x = 570,415,357.01/26,670
  6. Step 6: Final answer
    x = 21,387.90

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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.