Home / 33,156.88-45,739.38-20,559.76

Finding the Fourth Proportional to 33,156.88, 45,739.38 and 20,559.76

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Solution

The fourth proportional to 33,156.88, 45,739.38 and 20,559.76 is: 28,361.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,156.88 : 45,739.38 = 20,559.76 : x
  2. Step 2: Convert to fraction form
    33,156.88/45,739.38 = 20,559.76/x
  3. Step 3: Cross multiply
    33,156.88x = 45,739.38 × 20,559.76
  4. Step 4: Simplify right side
    33,156.88x = 940,390,638.10
  5. Step 5: Solve for x
    x = 940,390,638.10/33,156.88
  6. Step 6: Final answer
    x = 28,361.86

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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.