Home / 20,043.74-27,661.12-10,969.70

Finding the Fourth Proportional to 20,043.74, 27,661.12 and 10,969.70

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Solution

The fourth proportional to 20,043.74, 27,661.12 and 10,969.70 is: 15,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.74 : 27,661.12 = 10,969.70 : x
  2. Step 2: Convert to fraction form
    20,043.74/27,661.12 = 10,969.70/x
  3. Step 3: Cross multiply
    20,043.74x = 27,661.12 × 10,969.70
  4. Step 4: Simplify right side
    20,043.74x = 303,434,188.06
  5. Step 5: Solve for x
    x = 303,434,188.06/20,043.74
  6. Step 6: Final answer
    x = 15,138.60

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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.