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Finding the Fourth Proportional to 14,111.70, 21,124.35 and 14,111.70

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Solution

The fourth proportional to 14,111.70, 21,124.35 and 14,111.70 is: 21,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.70 : 21,124.35 = 14,111.70 : x
  2. Step 2: Convert to fraction form
    14,111.70/21,124.35 = 14,111.70/x
  3. Step 3: Cross multiply
    14,111.70x = 21,124.35 × 14,111.70
  4. Step 4: Simplify right side
    14,111.70x = 298,100,489.90
  5. Step 5: Solve for x
    x = 298,100,489.90/14,111.70
  6. Step 6: Final answer
    x = 21,124.35

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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.