Home / 20,724.58-31,059.12-7,564.54

Finding the Fourth Proportional to 20,724.58, 31,059.12 and 7,564.54

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Solution

The fourth proportional to 20,724.58, 31,059.12 and 7,564.54 is: 11,336.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.58 : 31,059.12 = 7,564.54 : x
  2. Step 2: Convert to fraction form
    20,724.58/31,059.12 = 7,564.54/x
  3. Step 3: Cross multiply
    20,724.58x = 31,059.12 × 7,564.54
  4. Step 4: Simplify right side
    20,724.58x = 234,947,955.60
  5. Step 5: Solve for x
    x = 234,947,955.60/20,724.58
  6. Step 6: Final answer
    x = 11,336.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.