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Finding the Fourth Proportional to 14,352.69, 21,570.50 and 13,356.09

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Solution

The fourth proportional to 14,352.69, 21,570.50 and 13,356.09 is: 20,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,352.69 : 21,570.50 = 13,356.09 : x
  2. Step 2: Convert to fraction form
    14,352.69/21,570.50 = 13,356.09/x
  3. Step 3: Cross multiply
    14,352.69x = 21,570.50 × 13,356.09
  4. Step 4: Simplify right side
    14,352.69x = 288,097,572.74
  5. Step 5: Solve for x
    x = 288,097,572.74/14,352.69
  6. Step 6: Final answer
    x = 20,072.72

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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.