Home / 20,803.26-28,708.38-11,851.14

Finding the Fourth Proportional to 20,803.26, 28,708.38 and 11,851.14

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Solution

The fourth proportional to 20,803.26, 28,708.38 and 11,851.14 is: 16,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803.26 : 28,708.38 = 11,851.14 : x
  2. Step 2: Convert to fraction form
    20,803.26/28,708.38 = 11,851.14/x
  3. Step 3: Cross multiply
    20,803.26x = 28,708.38 × 11,851.14
  4. Step 4: Simplify right side
    20,803.26x = 340,227,030.55
  5. Step 5: Solve for x
    x = 340,227,030.55/20,803.26
  6. Step 6: Final answer
    x = 16,354.51

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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.