Home / 20,065.22-27,694.61-13,351.13

Finding the Fourth Proportional to 20,065.22, 27,694.61 and 13,351.13

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Solution

The fourth proportional to 20,065.22, 27,694.61 and 13,351.13 is: 18,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.22 : 27,694.61 = 13,351.13 : x
  2. Step 2: Convert to fraction form
    20,065.22/27,694.61 = 13,351.13/x
  3. Step 3: Cross multiply
    20,065.22x = 27,694.61 × 13,351.13
  4. Step 4: Simplify right side
    20,065.22x = 369,754,338.41
  5. Step 5: Solve for x
    x = 369,754,338.41/20,065.22
  6. Step 6: Final answer
    x = 18,427.62

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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.