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Finding the Fourth Proportional to 25,772.96, 35,563.36 and 15,158.72

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Solution

The fourth proportional to 25,772.96, 35,563.36 and 15,158.72 is: 20,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,772.96 : 35,563.36 = 15,158.72 : x
  2. Step 2: Convert to fraction form
    25,772.96/35,563.36 = 15,158.72/x
  3. Step 3: Cross multiply
    25,772.96x = 35,563.36 × 15,158.72
  4. Step 4: Simplify right side
    25,772.96x = 539,095,016.50
  5. Step 5: Solve for x
    x = 539,095,016.50/25,772.96
  6. Step 6: Final answer
    x = 20,917.08

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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.