Home / 28,856.20-43,300.62-15,709.48

Finding the Fourth Proportional to 28,856.20, 43,300.62 and 15,709.48

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Solution

The fourth proportional to 28,856.20, 43,300.62 and 15,709.48 is: 23,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.20 : 43,300.62 = 15,709.48 : x
  2. Step 2: Convert to fraction form
    28,856.20/43,300.62 = 15,709.48/x
  3. Step 3: Cross multiply
    28,856.20x = 43,300.62 × 15,709.48
  4. Step 4: Simplify right side
    28,856.20x = 680,230,223.88
  5. Step 5: Solve for x
    x = 680,230,223.88/28,856.20
  6. Step 6: Final answer
    x = 23,573.10

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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.