Home / 20,651.10-30,954.99-10,106.58

Finding the Fourth Proportional to 20,651.10, 30,954.99 and 10,106.58

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Solution

The fourth proportional to 20,651.10, 30,954.99 and 10,106.58 is: 15,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.10 : 30,954.99 = 10,106.58 : x
  2. Step 2: Convert to fraction form
    20,651.10/30,954.99 = 10,106.58/x
  3. Step 3: Cross multiply
    20,651.10x = 30,954.99 × 10,106.58
  4. Step 4: Simplify right side
    20,651.10x = 312,849,082.83
  5. Step 5: Solve for x
    x = 312,849,082.83/20,651.10
  6. Step 6: Final answer
    x = 15,149.27

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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.