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Finding the Fourth Proportional to 43,212, 64,818 and 14,028

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Solution

The fourth proportional to 43,212, 64,818 and 14,028 is: 21,042

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,212 : 64,818 = 14,028 : x
  2. Step 2: Convert to fraction form
    43,212/64,818 = 14,028/x
  3. Step 3: Cross multiply
    43,212x = 64,818 × 14,028
  4. Step 4: Simplify right side
    43,212x = 909,266,904
  5. Step 5: Solve for x
    x = 909,266,904/43,212
  6. Step 6: Final answer
    x = 21,042

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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.