Home / 28,758.24-43,122.78-13,162.50

Finding the Fourth Proportional to 28,758.24, 43,122.78 and 13,162.50

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Solution

The fourth proportional to 28,758.24, 43,122.78 and 13,162.50 is: 19,737.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.24 : 43,122.78 = 13,162.50 : x
  2. Step 2: Convert to fraction form
    28,758.24/43,122.78 = 13,162.50/x
  3. Step 3: Cross multiply
    28,758.24x = 43,122.78 × 13,162.50
  4. Step 4: Simplify right side
    28,758.24x = 567,603,591.75
  5. Step 5: Solve for x
    x = 567,603,591.75/28,758.24
  6. Step 6: Final answer
    x = 19,737.08

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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.