Home / 25,515.27-38,290.31-8,875.13

Finding the Fourth Proportional to 25,515.27, 38,290.31 and 8,875.13

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Solution

The fourth proportional to 25,515.27, 38,290.31 and 8,875.13 is: 13,318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.27 : 38,290.31 = 8,875.13 : x
  2. Step 2: Convert to fraction form
    25,515.27/38,290.31 = 8,875.13/x
  3. Step 3: Cross multiply
    25,515.27x = 38,290.31 × 8,875.13
  4. Step 4: Simplify right side
    25,515.27x = 339,831,596.90
  5. Step 5: Solve for x
    x = 339,831,596.90/25,515.27
  6. Step 6: Final answer
    x = 13,318.75

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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.