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Finding the Fourth Proportional to 25,570.40, 35,284.60 and 18,859.64

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Solution

The fourth proportional to 25,570.40, 35,284.60 and 18,859.64 is: 26,024.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,570.40 : 35,284.60 = 18,859.64 : x
  2. Step 2: Convert to fraction form
    25,570.40/35,284.60 = 18,859.64/x
  3. Step 3: Cross multiply
    25,570.40x = 35,284.60 × 18,859.64
  4. Step 4: Simplify right side
    25,570.40x = 665,454,853.54
  5. Step 5: Solve for x
    x = 665,454,853.54/25,570.40
  6. Step 6: Final answer
    x = 26,024.42

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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.