Home / 28,516.96-39,334.87-18,291.81

Finding the Fourth Proportional to 28,516.96, 39,334.87 and 18,291.81

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Solution

The fourth proportional to 28,516.96, 39,334.87 and 18,291.81 is: 25,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.96 : 39,334.87 = 18,291.81 : x
  2. Step 2: Convert to fraction form
    28,516.96/39,334.87 = 18,291.81/x
  3. Step 3: Cross multiply
    28,516.96x = 39,334.87 × 18,291.81
  4. Step 4: Simplify right side
    28,516.96x = 719,505,922.69
  5. Step 5: Solve for x
    x = 719,505,922.69/28,516.96
  6. Step 6: Final answer
    x = 25,230.81

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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.