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Finding the Fourth Proportional to 25,518.60, 35,217.64 and 15,310.02

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Solution

The fourth proportional to 25,518.60, 35,217.64 and 15,310.02 is: 21,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,518.60 : 35,217.64 = 15,310.02 : x
  2. Step 2: Convert to fraction form
    25,518.60/35,217.64 = 15,310.02/x
  3. Step 3: Cross multiply
    25,518.60x = 35,217.64 × 15,310.02
  4. Step 4: Simplify right side
    25,518.60x = 539,182,596.66
  5. Step 5: Solve for x
    x = 539,182,596.66/25,518.60
  6. Step 6: Final answer
    x = 21,129.00

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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.