Home / 20,468.23-28,244.14-11,515.54

Finding the Fourth Proportional to 20,468.23, 28,244.14 and 11,515.54

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Solution

The fourth proportional to 20,468.23, 28,244.14 and 11,515.54 is: 15,890.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.23 : 28,244.14 = 11,515.54 : x
  2. Step 2: Convert to fraction form
    20,468.23/28,244.14 = 11,515.54/x
  3. Step 3: Cross multiply
    20,468.23x = 28,244.14 × 11,515.54
  4. Step 4: Simplify right side
    20,468.23x = 325,246,382.71
  5. Step 5: Solve for x
    x = 325,246,382.71/20,468.23
  6. Step 6: Final answer
    x = 15,890.31

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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.