Home / 20,039.43-27,653.74-10,964.75

Finding the Fourth Proportional to 20,039.43, 27,653.74 and 10,964.75

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Solution

The fourth proportional to 20,039.43, 27,653.74 and 10,964.75 is: 15,130.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.43 : 27,653.74 = 10,964.75 : x
  2. Step 2: Convert to fraction form
    20,039.43/27,653.74 = 10,964.75/x
  3. Step 3: Cross multiply
    20,039.43x = 27,653.74 × 10,964.75
  4. Step 4: Simplify right side
    20,039.43x = 303,216,345.67
  5. Step 5: Solve for x
    x = 303,216,345.67/20,039.43
  6. Step 6: Final answer
    x = 15,130.99

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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.