Home / 20,673.00-28,527.88-11,721.11

Finding the Fourth Proportional to 20,673.00, 28,527.88 and 11,721.11

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Solution

The fourth proportional to 20,673.00, 28,527.88 and 11,721.11 is: 16,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.00 : 28,527.88 = 11,721.11 : x
  2. Step 2: Convert to fraction form
    20,673.00/28,527.88 = 11,721.11/x
  3. Step 3: Cross multiply
    20,673.00x = 28,527.88 × 11,721.11
  4. Step 4: Simplify right side
    20,673.00x = 334,378,289.62
  5. Step 5: Solve for x
    x = 334,378,289.62/20,673.00
  6. Step 6: Final answer
    x = 16,174.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.