Home / 55,215.33-82,835.21-20,154.88

Finding the Fourth Proportional to 55,215.33, 82,835.21 and 20,154.88

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Solution

The fourth proportional to 55,215.33, 82,835.21 and 20,154.88 is: 30,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.33 : 82,835.21 = 20,154.88 : x
  2. Step 2: Convert to fraction form
    55,215.33/82,835.21 = 20,154.88/x
  3. Step 3: Cross multiply
    55,215.33x = 82,835.21 × 20,154.88
  4. Step 4: Simplify right side
    55,215.33x = 1,669,533,717.32
  5. Step 5: Solve for x
    x = 1,669,533,717.32/55,215.33
  6. Step 6: Final answer
    x = 30,236.78

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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.