Home / 20,885.66-31,332.09-11,033.18

Finding the Fourth Proportional to 20,885.66, 31,332.09 and 11,033.18

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Solution

The fourth proportional to 20,885.66, 31,332.09 and 11,033.18 is: 16,551.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885.66 : 31,332.09 = 11,033.18 : x
  2. Step 2: Convert to fraction form
    20,885.66/31,332.09 = 11,033.18/x
  3. Step 3: Cross multiply
    20,885.66x = 31,332.09 × 11,033.18
  4. Step 4: Simplify right side
    20,885.66x = 345,692,588.75
  5. Step 5: Solve for x
    x = 345,692,588.75/20,885.66
  6. Step 6: Final answer
    x = 16,551.67

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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.