Home / 17,020.80-23,491.20-10,742.40

Finding the Fourth Proportional to 17,020.80, 23,491.20 and 10,742.40

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Solution

The fourth proportional to 17,020.80, 23,491.20 and 10,742.40 is: 14,826.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,020.80 : 23,491.20 = 10,742.40 : x
  2. Step 2: Convert to fraction form
    17,020.80/23,491.20 = 10,742.40/x
  3. Step 3: Cross multiply
    17,020.80x = 23,491.20 × 10,742.40
  4. Step 4: Simplify right side
    17,020.80x = 252,351,866.88
  5. Step 5: Solve for x
    x = 252,351,866.88/17,020.80
  6. Step 6: Final answer
    x = 14,826.09

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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.