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Finding the Fourth Proportional to 26,168, 36,111.84 and 14,990.08

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Solution

The fourth proportional to 26,168, 36,111.84 and 14,990.08 is: 20,686.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,168 : 36,111.84 = 14,990.08 : x
  2. Step 2: Convert to fraction form
    26,168/36,111.84 = 14,990.08/x
  3. Step 3: Cross multiply
    26,168x = 36,111.84 × 14,990.08
  4. Step 4: Simplify right side
    26,168x = 541,319,370.55
  5. Step 5: Solve for x
    x = 541,319,370.55/26,168
  6. Step 6: Final answer
    x = 20,686.31

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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.