Home / 20,667.25-31,000.89-6,816.25

Finding the Fourth Proportional to 20,667.25, 31,000.89 and 6,816.25

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Solution

The fourth proportional to 20,667.25, 31,000.89 and 6,816.25 is: 10,224.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.25 : 31,000.89 = 6,816.25 : x
  2. Step 2: Convert to fraction form
    20,667.25/31,000.89 = 6,816.25/x
  3. Step 3: Cross multiply
    20,667.25x = 31,000.89 × 6,816.25
  4. Step 4: Simplify right side
    20,667.25x = 211,309,816.46
  5. Step 5: Solve for x
    x = 211,309,816.46/20,667.25
  6. Step 6: Final answer
    x = 10,224.38

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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.