Home / 28,336.54-39,103.38-15,761.02

Finding the Fourth Proportional to 28,336.54, 39,103.38 and 15,761.02

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Solution

The fourth proportional to 28,336.54, 39,103.38 and 15,761.02 is: 21,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.54 : 39,103.38 = 15,761.02 : x
  2. Step 2: Convert to fraction form
    28,336.54/39,103.38 = 15,761.02/x
  3. Step 3: Cross multiply
    28,336.54x = 39,103.38 × 15,761.02
  4. Step 4: Simplify right side
    28,336.54x = 616,309,154.25
  5. Step 5: Solve for x
    x = 616,309,154.25/28,336.54
  6. Step 6: Final answer
    x = 21,749.63

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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.