Home / 15,981.93-23,965.44-5,449.11

Finding the Fourth Proportional to 15,981.93, 23,965.44 and 5,449.11

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Solution

The fourth proportional to 15,981.93, 23,965.44 and 5,449.11 is: 8,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.93 : 23,965.44 = 5,449.11 : x
  2. Step 2: Convert to fraction form
    15,981.93/23,965.44 = 5,449.11/x
  3. Step 3: Cross multiply
    15,981.93x = 23,965.44 × 5,449.11
  4. Step 4: Simplify right side
    15,981.93x = 130,590,318.76
  5. Step 5: Solve for x
    x = 130,590,318.76/15,981.93
  6. Step 6: Final answer
    x = 8,171.12

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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.