Home / 19,688.10-27,169.62-11,730.46

Finding the Fourth Proportional to 19,688.10, 27,169.62 and 11,730.46

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Solution

The fourth proportional to 19,688.10, 27,169.62 and 11,730.46 is: 16,188.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.10 : 27,169.62 = 11,730.46 : x
  2. Step 2: Convert to fraction form
    19,688.10/27,169.62 = 11,730.46/x
  3. Step 3: Cross multiply
    19,688.10x = 27,169.62 × 11,730.46
  4. Step 4: Simplify right side
    19,688.10x = 318,712,140.63
  5. Step 5: Solve for x
    x = 318,712,140.63/19,688.10
  6. Step 6: Final answer
    x = 16,188.06

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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.