Home / 20,752.10-28,639.26-11,800.44

Finding the Fourth Proportional to 20,752.10, 28,639.26 and 11,800.44

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Solution

The fourth proportional to 20,752.10, 28,639.26 and 11,800.44 is: 16,285.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.10 : 28,639.26 = 11,800.44 : x
  2. Step 2: Convert to fraction form
    20,752.10/28,639.26 = 11,800.44/x
  3. Step 3: Cross multiply
    20,752.10x = 28,639.26 × 11,800.44
  4. Step 4: Simplify right side
    20,752.10x = 337,955,667.08
  5. Step 5: Solve for x
    x = 337,955,667.08/20,752.10
  6. Step 6: Final answer
    x = 16,285.37

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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.