Home / 20,620.61-30,924.74-10,754.51

Finding the Fourth Proportional to 20,620.61, 30,924.74 and 10,754.51

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Solution

The fourth proportional to 20,620.61, 30,924.74 and 10,754.51 is: 16,128.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.61 : 30,924.74 = 10,754.51 : x
  2. Step 2: Convert to fraction form
    20,620.61/30,924.74 = 10,754.51/x
  3. Step 3: Cross multiply
    20,620.61x = 30,924.74 × 10,754.51
  4. Step 4: Simplify right side
    20,620.61x = 332,580,297.84
  5. Step 5: Solve for x
    x = 332,580,297.84/20,620.61
  6. Step 6: Final answer
    x = 16,128.54

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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.