Home / 26,481.28-39,730.56-12,628.48

Finding the Fourth Proportional to 26,481.28, 39,730.56 and 12,628.48

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Solution

The fourth proportional to 26,481.28, 39,730.56 and 12,628.48 is: 18,946.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,481.28 : 39,730.56 = 12,628.48 : x
  2. Step 2: Convert to fraction form
    26,481.28/39,730.56 = 12,628.48/x
  3. Step 3: Cross multiply
    26,481.28x = 39,730.56 × 12,628.48
  4. Step 4: Simplify right side
    26,481.28x = 501,736,582.35
  5. Step 5: Solve for x
    x = 501,736,582.35/26,481.28
  6. Step 6: Final answer
    x = 18,946.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.