Home / 28,032.84-38,687.94-20,946.96

Finding the Fourth Proportional to 28,032.84, 38,687.94 and 20,946.96

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Solution

The fourth proportional to 28,032.84, 38,687.94 and 20,946.96 is: 28,908.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.84 : 38,687.94 = 20,946.96 : x
  2. Step 2: Convert to fraction form
    28,032.84/38,687.94 = 20,946.96/x
  3. Step 3: Cross multiply
    28,032.84x = 38,687.94 × 20,946.96
  4. Step 4: Simplify right side
    28,032.84x = 810,394,731.66
  5. Step 5: Solve for x
    x = 810,394,731.66/28,032.84
  6. Step 6: Final answer
    x = 28,908.76

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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.