Home / 20,528.10-28,328.79-11,096.67

Finding the Fourth Proportional to 20,528.10, 28,328.79 and 11,096.67

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Solution

The fourth proportional to 20,528.10, 28,328.79 and 11,096.67 is: 15,313.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.10 : 28,328.79 = 11,096.67 : x
  2. Step 2: Convert to fraction form
    20,528.10/28,328.79 = 11,096.67/x
  3. Step 3: Cross multiply
    20,528.10x = 28,328.79 × 11,096.67
  4. Step 4: Simplify right side
    20,528.10x = 314,355,234.13
  5. Step 5: Solve for x
    x = 314,355,234.13/20,528.10
  6. Step 6: Final answer
    x = 15,313.41

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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.