Home / 20,999.94-31,506.05-6,209.24

Finding the Fourth Proportional to 20,999.94, 31,506.05 and 6,209.24

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Solution

The fourth proportional to 20,999.94, 31,506.05 and 6,209.24 is: 9,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,999.94 : 31,506.05 = 6,209.24 : x
  2. Step 2: Convert to fraction form
    20,999.94/31,506.05 = 6,209.24/x
  3. Step 3: Cross multiply
    20,999.94x = 31,506.05 × 6,209.24
  4. Step 4: Simplify right side
    20,999.94x = 195,628,562.66
  5. Step 5: Solve for x
    x = 195,628,562.66/20,999.94
  6. Step 6: Final answer
    x = 9,315.67

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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.