Home / 28,650.58-42,947.92-12,015.61

Finding the Fourth Proportional to 28,650.58, 42,947.92 and 12,015.61

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Solution

The fourth proportional to 28,650.58, 42,947.92 and 12,015.61 is: 18,011.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.58 : 42,947.92 = 12,015.61 : x
  2. Step 2: Convert to fraction form
    28,650.58/42,947.92 = 12,015.61/x
  3. Step 3: Cross multiply
    28,650.58x = 42,947.92 × 12,015.61
  4. Step 4: Simplify right side
    28,650.58x = 516,045,457.03
  5. Step 5: Solve for x
    x = 516,045,457.03/28,650.58
  6. Step 6: Final answer
    x = 18,011.69

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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.