Home / 28,856.48-43,292.36-9,135.36

Finding the Fourth Proportional to 28,856.48, 43,292.36 and 9,135.36

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Solution

The fourth proportional to 28,856.48, 43,292.36 and 9,135.36 is: 13,705.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.48 : 43,292.36 = 9,135.36 : x
  2. Step 2: Convert to fraction form
    28,856.48/43,292.36 = 9,135.36/x
  3. Step 3: Cross multiply
    28,856.48x = 43,292.36 × 9,135.36
  4. Step 4: Simplify right side
    28,856.48x = 395,491,293.85
  5. Step 5: Solve for x
    x = 395,491,293.85/28,856.48
  6. Step 6: Final answer
    x = 13,705.46

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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.