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Finding the Fourth Proportional to 25,978.83, 38,846.59 and 18,560.34

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Solution

The fourth proportional to 25,978.83, 38,846.59 and 18,560.34 is: 27,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,978.83 : 38,846.59 = 18,560.34 : x
  2. Step 2: Convert to fraction form
    25,978.83/38,846.59 = 18,560.34/x
  3. Step 3: Cross multiply
    25,978.83x = 38,846.59 × 18,560.34
  4. Step 4: Simplify right side
    25,978.83x = 721,005,871.84
  5. Step 5: Solve for x
    x = 721,005,871.84/25,978.83
  6. Step 6: Final answer
    x = 27,753.60

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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.