Home / 20,528.09-28,328.70-11,096.65

Finding the Fourth Proportional to 20,528.09, 28,328.70 and 11,096.65

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Solution

The fourth proportional to 20,528.09, 28,328.70 and 11,096.65 is: 15,313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.09 : 28,328.70 = 11,096.65 : x
  2. Step 2: Convert to fraction form
    20,528.09/28,328.70 = 11,096.65/x
  3. Step 3: Cross multiply
    20,528.09x = 28,328.70 × 11,096.65
  4. Step 4: Simplify right side
    20,528.09x = 314,353,668.86
  5. Step 5: Solve for x
    x = 314,353,668.86/20,528.09
  6. Step 6: Final answer
    x = 15,313.34

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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.