Home / 20,579.25-28,400.58-11,626.52

Finding the Fourth Proportional to 20,579.25, 28,400.58 and 11,626.52

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Solution

The fourth proportional to 20,579.25, 28,400.58 and 11,626.52 is: 16,045.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.25 : 28,400.58 = 11,626.52 : x
  2. Step 2: Convert to fraction form
    20,579.25/28,400.58 = 11,626.52/x
  3. Step 3: Cross multiply
    20,579.25x = 28,400.58 × 11,626.52
  4. Step 4: Simplify right side
    20,579.25x = 330,199,982.38
  5. Step 5: Solve for x
    x = 330,199,982.38/20,579.25
  6. Step 6: Final answer
    x = 16,045.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.