Home / 21,124.73-29,206.85-20,195.26

Finding the Fourth Proportional to 21,124.73, 29,206.85 and 20,195.26

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Solution

The fourth proportional to 21,124.73, 29,206.85 and 20,195.26 is: 27,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.73 : 29,206.85 = 20,195.26 : x
  2. Step 2: Convert to fraction form
    21,124.73/29,206.85 = 20,195.26/x
  3. Step 3: Cross multiply
    21,124.73x = 29,206.85 × 20,195.26
  4. Step 4: Simplify right side
    21,124.73x = 589,839,755.54
  5. Step 5: Solve for x
    x = 589,839,755.54/21,124.73
  6. Step 6: Final answer
    x = 27,921.76

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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.