Home / 20,838.63-31,325.69-16,723.73

Finding the Fourth Proportional to 20,838.63, 31,325.69 and 16,723.73

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Solution

The fourth proportional to 20,838.63, 31,325.69 and 16,723.73 is: 25,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.63 : 31,325.69 = 16,723.73 : x
  2. Step 2: Convert to fraction form
    20,838.63/31,325.69 = 16,723.73/x
  3. Step 3: Cross multiply
    20,838.63x = 31,325.69 × 16,723.73
  4. Step 4: Simplify right side
    20,838.63x = 523,882,501.75
  5. Step 5: Solve for x
    x = 523,882,501.75/20,838.63
  6. Step 6: Final answer
    x = 25,139.96

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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.