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Finding the Fourth Proportional to 14,580, 21,870 and 3,636

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Solution

The fourth proportional to 14,580, 21,870 and 3,636 is: 5,454

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,580 : 21,870 = 3,636 : x
  2. Step 2: Convert to fraction form
    14,580/21,870 = 3,636/x
  3. Step 3: Cross multiply
    14,580x = 21,870 × 3,636
  4. Step 4: Simplify right side
    14,580x = 79,519,320
  5. Step 5: Solve for x
    x = 79,519,320/14,580
  6. Step 6: Final answer
    x = 5,454

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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.