Home / 18,929.85-28,358.37-10,584.54

Finding the Fourth Proportional to 18,929.85, 28,358.37 and 10,584.54

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Solution

The fourth proportional to 18,929.85, 28,358.37 and 10,584.54 is: 15,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.85 : 28,358.37 = 10,584.54 : x
  2. Step 2: Convert to fraction form
    18,929.85/28,358.37 = 10,584.54/x
  3. Step 3: Cross multiply
    18,929.85x = 28,358.37 × 10,584.54
  4. Step 4: Simplify right side
    18,929.85x = 300,160,301.60
  5. Step 5: Solve for x
    x = 300,160,301.60/18,929.85
  6. Step 6: Final answer
    x = 15,856.45

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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.