Home / 20,238.51-30,360.32-10,865.65

Finding the Fourth Proportional to 20,238.51, 30,360.32 and 10,865.65

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Solution

The fourth proportional to 20,238.51, 30,360.32 and 10,865.65 is: 16,299.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.51 : 30,360.32 = 10,865.65 : x
  2. Step 2: Convert to fraction form
    20,238.51/30,360.32 = 10,865.65/x
  3. Step 3: Cross multiply
    20,238.51x = 30,360.32 × 10,865.65
  4. Step 4: Simplify right side
    20,238.51x = 329,884,556.68
  5. Step 5: Solve for x
    x = 329,884,556.68/20,238.51
  6. Step 6: Final answer
    x = 16,299.84

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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.