Home / 28,406.60-42,617.26-13,626.92

Finding the Fourth Proportional to 28,406.60, 42,617.26 and 13,626.92

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Solution

The fourth proportional to 28,406.60, 42,617.26 and 13,626.92 is: 20,443.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.60 : 42,617.26 = 13,626.92 : x
  2. Step 2: Convert to fraction form
    28,406.60/42,617.26 = 13,626.92/x
  3. Step 3: Cross multiply
    28,406.60x = 42,617.26 × 13,626.92
  4. Step 4: Simplify right side
    28,406.60x = 580,741,992.64
  5. Step 5: Solve for x
    x = 580,741,992.64/28,406.60
  6. Step 6: Final answer
    x = 20,443.91

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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.