Home / 20,976.29-28,947.97-12,025.49

Finding the Fourth Proportional to 20,976.29, 28,947.97 and 12,025.49

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Solution

The fourth proportional to 20,976.29, 28,947.97 and 12,025.49 is: 16,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976.29 : 28,947.97 = 12,025.49 : x
  2. Step 2: Convert to fraction form
    20,976.29/28,947.97 = 12,025.49/x
  3. Step 3: Cross multiply
    20,976.29x = 28,947.97 × 12,025.49
  4. Step 4: Simplify right side
    20,976.29x = 348,113,458.55
  5. Step 5: Solve for x
    x = 348,113,458.55/20,976.29
  6. Step 6: Final answer
    x = 16,595.57

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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.