Home / 28,826.40-43,239.60-15,704.40

Finding the Fourth Proportional to 28,826.40, 43,239.60 and 15,704.40

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Solution

The fourth proportional to 28,826.40, 43,239.60 and 15,704.40 is: 23,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.40 : 43,239.60 = 15,704.40 : x
  2. Step 2: Convert to fraction form
    28,826.40/43,239.60 = 15,704.40/x
  3. Step 3: Cross multiply
    28,826.40x = 43,239.60 × 15,704.40
  4. Step 4: Simplify right side
    28,826.40x = 679,051,974.24
  5. Step 5: Solve for x
    x = 679,051,974.24/28,826.40
  6. Step 6: Final answer
    x = 23,556.60

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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.