Home / 20,295.45-28,006.68-11,341.21

Finding the Fourth Proportional to 20,295.45, 28,006.68 and 11,341.21

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Solution

The fourth proportional to 20,295.45, 28,006.68 and 11,341.21 is: 15,650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.45 : 28,006.68 = 11,341.21 : x
  2. Step 2: Convert to fraction form
    20,295.45/28,006.68 = 11,341.21/x
  3. Step 3: Cross multiply
    20,295.45x = 28,006.68 × 11,341.21
  4. Step 4: Simplify right side
    20,295.45x = 317,629,639.28
  5. Step 5: Solve for x
    x = 317,629,639.28/20,295.45
  6. Step 6: Final answer
    x = 15,650.29

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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.