Home / 20,039.73-27,655.61-10,965.71

Finding the Fourth Proportional to 20,039.73, 27,655.61 and 10,965.71

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Solution

The fourth proportional to 20,039.73, 27,655.61 and 10,965.71 is: 15,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.73 : 27,655.61 = 10,965.71 : x
  2. Step 2: Convert to fraction form
    20,039.73/27,655.61 = 10,965.71/x
  3. Step 3: Cross multiply
    20,039.73x = 27,655.61 × 10,965.71
  4. Step 4: Simplify right side
    20,039.73x = 303,263,206.03
  5. Step 5: Solve for x
    x = 303,263,206.03/20,039.73
  6. Step 6: Final answer
    x = 15,133.10

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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.