Home / 20,264.12-27,964.78-11,880.76

Finding the Fourth Proportional to 20,264.12, 27,964.78 and 11,880.76

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Solution

The fourth proportional to 20,264.12, 27,964.78 and 11,880.76 is: 16,395.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.12 : 27,964.78 = 11,880.76 : x
  2. Step 2: Convert to fraction form
    20,264.12/27,964.78 = 11,880.76/x
  3. Step 3: Cross multiply
    20,264.12x = 27,964.78 × 11,880.76
  4. Step 4: Simplify right side
    20,264.12x = 332,242,839.63
  5. Step 5: Solve for x
    x = 332,242,839.63/20,264.12
  6. Step 6: Final answer
    x = 16,395.62

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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.