Home / 20,527.12-28,324.89-11,450.35

Finding the Fourth Proportional to 20,527.12, 28,324.89 and 11,450.35

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Solution

The fourth proportional to 20,527.12, 28,324.89 and 11,450.35 is: 15,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.12 : 28,324.89 = 11,450.35 : x
  2. Step 2: Convert to fraction form
    20,527.12/28,324.89 = 11,450.35/x
  3. Step 3: Cross multiply
    20,527.12x = 28,324.89 × 11,450.35
  4. Step 4: Simplify right side
    20,527.12x = 324,329,904.21
  5. Step 5: Solve for x
    x = 324,329,904.21/20,527.12
  6. Step 6: Final answer
    x = 15,800.07

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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.