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Finding the Fourth Proportional to 30,368.16, 45,550.44 and 11,657.16

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Solution

The fourth proportional to 30,368.16, 45,550.44 and 11,657.16 is: 17,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.16 : 45,550.44 = 11,657.16 : x
  2. Step 2: Convert to fraction form
    30,368.16/45,550.44 = 11,657.16/x
  3. Step 3: Cross multiply
    30,368.16x = 45,550.44 × 11,657.16
  4. Step 4: Simplify right side
    30,368.16x = 530,988,767.15
  5. Step 5: Solve for x
    x = 530,988,767.15/30,368.16
  6. Step 6: Final answer
    x = 17,485.05

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