Home / 20,734.06-28,613.78-11,783.08

Finding the Fourth Proportional to 20,734.06, 28,613.78 and 11,783.08

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Solution

The fourth proportional to 20,734.06, 28,613.78 and 11,783.08 is: 16,261.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.06 : 28,613.78 = 11,783.08 : x
  2. Step 2: Convert to fraction form
    20,734.06/28,613.78 = 11,783.08/x
  3. Step 3: Cross multiply
    20,734.06x = 28,613.78 × 11,783.08
  4. Step 4: Simplify right side
    20,734.06x = 337,158,458.84
  5. Step 5: Solve for x
    x = 337,158,458.84/20,734.06
  6. Step 6: Final answer
    x = 16,261.09

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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.