Home / 28,012.44-38,644.92-20,051.76

Finding the Fourth Proportional to 28,012.44, 38,644.92 and 20,051.76

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Solution

The fourth proportional to 28,012.44, 38,644.92 and 20,051.76 is: 27,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.44 : 38,644.92 = 20,051.76 : x
  2. Step 2: Convert to fraction form
    28,012.44/38,644.92 = 20,051.76/x
  3. Step 3: Cross multiply
    28,012.44x = 38,644.92 × 20,051.76
  4. Step 4: Simplify right side
    28,012.44x = 774,898,661.06
  5. Step 5: Solve for x
    x = 774,898,661.06/28,012.44
  6. Step 6: Final answer
    x = 27,662.66

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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.