Home / 20,950.04-28,911.06-11,519.24

Finding the Fourth Proportional to 20,950.04, 28,911.06 and 11,519.24

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Solution

The fourth proportional to 20,950.04, 28,911.06 and 11,519.24 is: 15,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.04 : 28,911.06 = 11,519.24 : x
  2. Step 2: Convert to fraction form
    20,950.04/28,911.06 = 11,519.24/x
  3. Step 3: Cross multiply
    20,950.04x = 28,911.06 × 11,519.24
  4. Step 4: Simplify right side
    20,950.04x = 333,033,438.79
  5. Step 5: Solve for x
    x = 333,033,438.79/20,950.04
  6. Step 6: Final answer
    x = 15,896.55

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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.