Home / 20,017.83-27,621.79-11,516.72

Finding the Fourth Proportional to 20,017.83, 27,621.79 and 11,516.72

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Solution

The fourth proportional to 20,017.83, 27,621.79 and 11,516.72 is: 15,891.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.83 : 27,621.79 = 11,516.72 : x
  2. Step 2: Convert to fraction form
    20,017.83/27,621.79 = 11,516.72/x
  3. Step 3: Cross multiply
    20,017.83x = 27,621.79 × 11,516.72
  4. Step 4: Simplify right side
    20,017.83x = 318,112,461.59
  5. Step 5: Solve for x
    x = 318,112,461.59/20,017.83
  6. Step 6: Final answer
    x = 15,891.46

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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.