Home / 20,301.27-28,016.37-11,349.15

Finding the Fourth Proportional to 20,301.27, 28,016.37 and 11,349.15

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Solution

The fourth proportional to 20,301.27, 28,016.37 and 11,349.15 is: 15,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.27 : 28,016.37 = 11,349.15 : x
  2. Step 2: Convert to fraction form
    20,301.27/28,016.37 = 11,349.15/x
  3. Step 3: Cross multiply
    20,301.27x = 28,016.37 × 11,349.15
  4. Step 4: Simplify right side
    20,301.27x = 317,961,880.52
  5. Step 5: Solve for x
    x = 317,961,880.52/20,301.27
  6. Step 6: Final answer
    x = 15,662.17

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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.