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Finding the Fourth Proportional to 25,459.53, 38,188.89 and 7,930.32

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Solution

The fourth proportional to 25,459.53, 38,188.89 and 7,930.32 is: 11,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.53 : 38,188.89 = 7,930.32 : x
  2. Step 2: Convert to fraction form
    25,459.53/38,188.89 = 7,930.32/x
  3. Step 3: Cross multiply
    25,459.53x = 38,188.89 × 7,930.32
  4. Step 4: Simplify right side
    25,459.53x = 302,850,118.14
  5. Step 5: Solve for x
    x = 302,850,118.14/25,459.53
  6. Step 6: Final answer
    x = 11,895.35

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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.