Home / 20,967.03-31,443.75-6,923.79

Finding the Fourth Proportional to 20,967.03, 31,443.75 and 6,923.79

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Solution

The fourth proportional to 20,967.03, 31,443.75 and 6,923.79 is: 10,383.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967.03 : 31,443.75 = 6,923.79 : x
  2. Step 2: Convert to fraction form
    20,967.03/31,443.75 = 6,923.79/x
  3. Step 3: Cross multiply
    20,967.03x = 31,443.75 × 6,923.79
  4. Step 4: Simplify right side
    20,967.03x = 217,709,921.81
  5. Step 5: Solve for x
    x = 217,709,921.81/20,967.03
  6. Step 6: Final answer
    x = 10,383.44

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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.