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Finding the Fourth Proportional to 22,754.91, 31,401.91 and 12,683.99

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Solution

The fourth proportional to 22,754.91, 31,401.91 and 12,683.99 is: 17,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,754.91 : 31,401.91 = 12,683.99 : x
  2. Step 2: Convert to fraction form
    22,754.91/31,401.91 = 12,683.99/x
  3. Step 3: Cross multiply
    22,754.91x = 31,401.91 × 12,683.99
  4. Step 4: Simplify right side
    22,754.91x = 398,301,355.41
  5. Step 5: Solve for x
    x = 398,301,355.41/22,754.91
  6. Step 6: Final answer
    x = 17,503.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.