Home / 20,450.27-30,689.52-13,433.64

Finding the Fourth Proportional to 20,450.27, 30,689.52 and 13,433.64

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Solution

The fourth proportional to 20,450.27, 30,689.52 and 13,433.64 is: 20,159.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.27 : 30,689.52 = 13,433.64 : x
  2. Step 2: Convert to fraction form
    20,450.27/30,689.52 = 13,433.64/x
  3. Step 3: Cross multiply
    20,450.27x = 30,689.52 × 13,433.64
  4. Step 4: Simplify right side
    20,450.27x = 412,271,963.45
  5. Step 5: Solve for x
    x = 412,271,963.45/20,450.27
  6. Step 6: Final answer
    x = 20,159.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.