Home / 28,023.50-38,665.62-16,685.73

Finding the Fourth Proportional to 28,023.50, 38,665.62 and 16,685.73

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Solution

The fourth proportional to 28,023.50, 38,665.62 and 16,685.73 is: 23,022.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.50 : 38,665.62 = 16,685.73 : x
  2. Step 2: Convert to fraction form
    28,023.50/38,665.62 = 16,685.73/x
  3. Step 3: Cross multiply
    28,023.50x = 38,665.62 × 16,685.73
  4. Step 4: Simplify right side
    28,023.50x = 645,164,095.60
  5. Step 5: Solve for x
    x = 645,164,095.60/28,023.50
  6. Step 6: Final answer
    x = 23,022.25

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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.