Home / 28,696.16-43,045.20-7,919.84

Finding the Fourth Proportional to 28,696.16, 43,045.20 and 7,919.84

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Solution

The fourth proportional to 28,696.16, 43,045.20 and 7,919.84 is: 11,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.16 : 43,045.20 = 7,919.84 : x
  2. Step 2: Convert to fraction form
    28,696.16/43,045.20 = 7,919.84/x
  3. Step 3: Cross multiply
    28,696.16x = 43,045.20 × 7,919.84
  4. Step 4: Simplify right side
    28,696.16x = 340,911,096.77
  5. Step 5: Solve for x
    x = 340,911,096.77/28,696.16
  6. Step 6: Final answer
    x = 11,880.02

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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.