Home / 20,536.07-28,339.74-11,104.65

Finding the Fourth Proportional to 20,536.07, 28,339.74 and 11,104.65

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Solution

The fourth proportional to 20,536.07, 28,339.74 and 11,104.65 is: 15,324.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.07 : 28,339.74 = 11,104.65 : x
  2. Step 2: Convert to fraction form
    20,536.07/28,339.74 = 11,104.65/x
  3. Step 3: Cross multiply
    20,536.07x = 28,339.74 × 11,104.65
  4. Step 4: Simplify right side
    20,536.07x = 314,702,893.79
  5. Step 5: Solve for x
    x = 314,702,893.79/20,536.07
  6. Step 6: Final answer
    x = 15,324.40

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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.