Home / 28,260.76-39,003.92-16,930.74

Finding the Fourth Proportional to 28,260.76, 39,003.92 and 16,930.74

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Solution

The fourth proportional to 28,260.76, 39,003.92 and 16,930.74 is: 23,366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260.76 : 39,003.92 = 16,930.74 : x
  2. Step 2: Convert to fraction form
    28,260.76/39,003.92 = 16,930.74/x
  3. Step 3: Cross multiply
    28,260.76x = 39,003.92 × 16,930.74
  4. Step 4: Simplify right side
    28,260.76x = 660,365,228.50
  5. Step 5: Solve for x
    x = 660,365,228.50/28,260.76
  6. Step 6: Final answer
    x = 23,366.86

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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.