Home / 28,664.46-39,556.44-15,917.67

Finding the Fourth Proportional to 28,664.46, 39,556.44 and 15,917.67

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Solution

The fourth proportional to 28,664.46, 39,556.44 and 15,917.67 is: 21,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.46 : 39,556.44 = 15,917.67 : x
  2. Step 2: Convert to fraction form
    28,664.46/39,556.44 = 15,917.67/x
  3. Step 3: Cross multiply
    28,664.46x = 39,556.44 × 15,917.67
  4. Step 4: Simplify right side
    28,664.46x = 629,646,358.29
  5. Step 5: Solve for x
    x = 629,646,358.29/28,664.46
  6. Step 6: Final answer
    x = 21,966.10

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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.