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Finding the Fourth Proportional to 22,589.84, 31,174.25 and 12,518.45

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Solution

The fourth proportional to 22,589.84, 31,174.25 and 12,518.45 is: 17,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,589.84 : 31,174.25 = 12,518.45 : x
  2. Step 2: Convert to fraction form
    22,589.84/31,174.25 = 12,518.45/x
  3. Step 3: Cross multiply
    22,589.84x = 31,174.25 × 12,518.45
  4. Step 4: Simplify right side
    22,589.84x = 390,253,188.35
  5. Step 5: Solve for x
    x = 390,253,188.35/22,589.84
  6. Step 6: Final answer
    x = 17,275.60

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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.