Home / 20,724.08-28,599.24-11,292.44

Finding the Fourth Proportional to 20,724.08, 28,599.24 and 11,292.44

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Solution

The fourth proportional to 20,724.08, 28,599.24 and 11,292.44 is: 15,583.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.08 : 28,599.24 = 11,292.44 : x
  2. Step 2: Convert to fraction form
    20,724.08/28,599.24 = 11,292.44/x
  3. Step 3: Cross multiply
    20,724.08x = 28,599.24 × 11,292.44
  4. Step 4: Simplify right side
    20,724.08x = 322,955,201.75
  5. Step 5: Solve for x
    x = 322,955,201.75/20,724.08
  6. Step 6: Final answer
    x = 15,583.57

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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.