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Finding the Fourth Proportional to 25,206.90, 34,741.57 and 18,478.22

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Solution

The fourth proportional to 25,206.90, 34,741.57 and 18,478.22 is: 25,467.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,206.90 : 34,741.57 = 18,478.22 : x
  2. Step 2: Convert to fraction form
    25,206.90/34,741.57 = 18,478.22/x
  3. Step 3: Cross multiply
    25,206.90x = 34,741.57 × 18,478.22
  4. Step 4: Simplify right side
    25,206.90x = 641,962,373.61
  5. Step 5: Solve for x
    x = 641,962,373.61/25,206.90
  6. Step 6: Final answer
    x = 25,467.72

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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.