Home / 20,693.25-31,000.83-12,234.51

Finding the Fourth Proportional to 20,693.25, 31,000.83 and 12,234.51

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Solution

The fourth proportional to 20,693.25, 31,000.83 and 12,234.51 is: 18,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.25 : 31,000.83 = 12,234.51 : x
  2. Step 2: Convert to fraction form
    20,693.25/31,000.83 = 12,234.51/x
  3. Step 3: Cross multiply
    20,693.25x = 31,000.83 × 12,234.51
  4. Step 4: Simplify right side
    20,693.25x = 379,279,964.64
  5. Step 5: Solve for x
    x = 379,279,964.64/20,693.25
  6. Step 6: Final answer
    x = 18,328.68

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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.