Home / 20,699.06-31,048.61-14,471.15

Finding the Fourth Proportional to 20,699.06, 31,048.61 and 14,471.15

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Solution

The fourth proportional to 20,699.06, 31,048.61 and 14,471.15 is: 21,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.06 : 31,048.61 = 14,471.15 : x
  2. Step 2: Convert to fraction form
    20,699.06/31,048.61 = 14,471.15/x
  3. Step 3: Cross multiply
    20,699.06x = 31,048.61 × 14,471.15
  4. Step 4: Simplify right side
    20,699.06x = 449,308,865.00
  5. Step 5: Solve for x
    x = 449,308,865.00/20,699.06
  6. Step 6: Final answer
    x = 21,706.73

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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.