Home / 20,528.29-28,329.11-11,096.85

Finding the Fourth Proportional to 20,528.29, 28,329.11 and 11,096.85

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Solution

The fourth proportional to 20,528.29, 28,329.11 and 11,096.85 is: 15,313.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.29 : 28,329.11 = 11,096.85 : x
  2. Step 2: Convert to fraction form
    20,528.29/28,329.11 = 11,096.85/x
  3. Step 3: Cross multiply
    20,528.29x = 28,329.11 × 11,096.85
  4. Step 4: Simplify right side
    20,528.29x = 314,363,884.30
  5. Step 5: Solve for x
    x = 314,363,884.30/20,528.29
  6. Step 6: Final answer
    x = 15,313.69

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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.