Home / 20,010.81-27,616.23-13,285.92

Finding the Fourth Proportional to 20,010.81, 27,616.23 and 13,285.92

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Solution

The fourth proportional to 20,010.81, 27,616.23 and 13,285.92 is: 18,335.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.81 : 27,616.23 = 13,285.92 : x
  2. Step 2: Convert to fraction form
    20,010.81/27,616.23 = 13,285.92/x
  3. Step 3: Cross multiply
    20,010.81x = 27,616.23 × 13,285.92
  4. Step 4: Simplify right side
    20,010.81x = 366,907,022.48
  5. Step 5: Solve for x
    x = 366,907,022.48/20,010.81
  6. Step 6: Final answer
    x = 18,335.44

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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.