Home / 25,631.99-38,449.16-7,861.35

Finding the Fourth Proportional to 25,631.99, 38,449.16 and 7,861.35

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Solution

The fourth proportional to 25,631.99, 38,449.16 and 7,861.35 is: 11,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.99 : 38,449.16 = 7,861.35 : x
  2. Step 2: Convert to fraction form
    25,631.99/38,449.16 = 7,861.35/x
  3. Step 3: Cross multiply
    25,631.99x = 38,449.16 × 7,861.35
  4. Step 4: Simplify right side
    25,631.99x = 302,262,416.21
  5. Step 5: Solve for x
    x = 302,262,416.21/25,631.99
  6. Step 6: Final answer
    x = 11,792.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.