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Finding the Fourth Proportional to 25,178.58, 37,777.19 and 10,388.79

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Solution

The fourth proportional to 25,178.58, 37,777.19 and 10,388.79 is: 15,587.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,178.58 : 37,777.19 = 10,388.79 : x
  2. Step 2: Convert to fraction form
    25,178.58/37,777.19 = 10,388.79/x
  3. Step 3: Cross multiply
    25,178.58x = 37,777.19 × 10,388.79
  4. Step 4: Simplify right side
    25,178.58x = 392,459,241.76
  5. Step 5: Solve for x
    x = 392,459,241.76/25,178.58
  6. Step 6: Final answer
    x = 15,587.03

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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.