Home / 20,736.04-31,113.24-10,872.96

Finding the Fourth Proportional to 20,736.04, 31,113.24 and 10,872.96

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Solution

The fourth proportional to 20,736.04, 31,113.24 and 10,872.96 is: 16,314.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.04 : 31,113.24 = 10,872.96 : x
  2. Step 2: Convert to fraction form
    20,736.04/31,113.24 = 10,872.96/x
  3. Step 3: Cross multiply
    20,736.04x = 31,113.24 × 10,872.96
  4. Step 4: Simplify right side
    20,736.04x = 338,293,013.99
  5. Step 5: Solve for x
    x = 338,293,013.99/20,736.04
  6. Step 6: Final answer
    x = 16,314.25

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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.