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Finding the Fourth Proportional to 18,008.60, 27,019.30 and 17,368.60

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Solution

The fourth proportional to 18,008.60, 27,019.30 and 17,368.60 is: 26,059.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,008.60 : 27,019.30 = 17,368.60 : x
  2. Step 2: Convert to fraction form
    18,008.60/27,019.30 = 17,368.60/x
  3. Step 3: Cross multiply
    18,008.60x = 27,019.30 × 17,368.60
  4. Step 4: Simplify right side
    18,008.60x = 469,287,413.98
  5. Step 5: Solve for x
    x = 469,287,413.98/18,008.60
  6. Step 6: Final answer
    x = 26,059.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.