Home / 20,800.15-31,190.22-14,563.13

Finding the Fourth Proportional to 20,800.15, 31,190.22 and 14,563.13

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Solution

The fourth proportional to 20,800.15, 31,190.22 and 14,563.13 is: 21,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800.15 : 31,190.22 = 14,563.13 : x
  2. Step 2: Convert to fraction form
    20,800.15/31,190.22 = 14,563.13/x
  3. Step 3: Cross multiply
    20,800.15x = 31,190.22 × 14,563.13
  4. Step 4: Simplify right side
    20,800.15x = 454,227,072.64
  5. Step 5: Solve for x
    x = 454,227,072.64/20,800.15
  6. Step 6: Final answer
    x = 21,837.69

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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.