Home / 20,859.46-28,785.92-11,299.14

Finding the Fourth Proportional to 20,859.46, 28,785.92 and 11,299.14

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Solution

The fourth proportional to 20,859.46, 28,785.92 and 11,299.14 is: 15,592.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859.46 : 28,785.92 = 11,299.14 : x
  2. Step 2: Convert to fraction form
    20,859.46/28,785.92 = 11,299.14/x
  3. Step 3: Cross multiply
    20,859.46x = 28,785.92 × 11,299.14
  4. Step 4: Simplify right side
    20,859.46x = 325,256,140.11
  5. Step 5: Solve for x
    x = 325,256,140.11/20,859.46
  6. Step 6: Final answer
    x = 15,592.74

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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.