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Finding the Fourth Proportional to 18,090.60, 24,970.44 and 11,020.51

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Solution

The fourth proportional to 18,090.60, 24,970.44 and 11,020.51 is: 15,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.60 : 24,970.44 = 11,020.51 : x
  2. Step 2: Convert to fraction form
    18,090.60/24,970.44 = 11,020.51/x
  3. Step 3: Cross multiply
    18,090.60x = 24,970.44 × 11,020.51
  4. Step 4: Simplify right side
    18,090.60x = 275,186,983.72
  5. Step 5: Solve for x
    x = 275,186,983.72/18,090.60
  6. Step 6: Final answer
    x = 15,211.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.