Home / 20,468.28-28,246.26-11,516.28

Finding the Fourth Proportional to 20,468.28, 28,246.26 and 11,516.28

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Solution

The fourth proportional to 20,468.28, 28,246.26 and 11,516.28 is: 15,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.28 : 28,246.26 = 11,516.28 : x
  2. Step 2: Convert to fraction form
    20,468.28/28,246.26 = 11,516.28/x
  3. Step 3: Cross multiply
    20,468.28x = 28,246.26 × 11,516.28
  4. Step 4: Simplify right side
    20,468.28x = 325,291,839.11
  5. Step 5: Solve for x
    x = 325,291,839.11/20,468.28
  6. Step 6: Final answer
    x = 15,892.49

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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.