Home / 21,324.28-31,991.34-6,535.36

Finding the Fourth Proportional to 21,324.28, 31,991.34 and 6,535.36

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Solution

The fourth proportional to 21,324.28, 31,991.34 and 6,535.36 is: 9,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.28 : 31,991.34 = 6,535.36 : x
  2. Step 2: Convert to fraction form
    21,324.28/31,991.34 = 6,535.36/x
  3. Step 3: Cross multiply
    21,324.28x = 31,991.34 × 6,535.36
  4. Step 4: Simplify right side
    21,324.28x = 209,074,923.78
  5. Step 5: Solve for x
    x = 209,074,923.78/21,324.28
  6. Step 6: Final answer
    x = 9,804.55

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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.