Home / 20,734.92-28,606.08-12,763.32

Finding the Fourth Proportional to 20,734.92, 28,606.08 and 12,763.32

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Solution

The fourth proportional to 20,734.92, 28,606.08 and 12,763.32 is: 17,608.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.92 : 28,606.08 = 12,763.32 : x
  2. Step 2: Convert to fraction form
    20,734.92/28,606.08 = 12,763.32/x
  3. Step 3: Cross multiply
    20,734.92x = 28,606.08 × 12,763.32
  4. Step 4: Simplify right side
    20,734.92x = 365,108,552.99
  5. Step 5: Solve for x
    x = 365,108,552.99/20,734.92
  6. Step 6: Final answer
    x = 17,608.39

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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.