Home / 28,856.15-43,255.42-13,835.54

Finding the Fourth Proportional to 28,856.15, 43,255.42 and 13,835.54

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Solution

The fourth proportional to 28,856.15, 43,255.42 and 13,835.54 is: 20,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.15 : 43,255.42 = 13,835.54 : x
  2. Step 2: Convert to fraction form
    28,856.15/43,255.42 = 13,835.54/x
  3. Step 3: Cross multiply
    28,856.15x = 43,255.42 × 13,835.54
  4. Step 4: Simplify right side
    28,856.15x = 598,462,167.18
  5. Step 5: Solve for x
    x = 598,462,167.18/28,856.15
  6. Step 6: Final answer
    x = 20,739.50

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1.5x scale

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.