Home / 20,933.28-31,273.38-13,476.96

Finding the Fourth Proportional to 20,933.28, 31,273.38 and 13,476.96

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Solution

The fourth proportional to 20,933.28, 31,273.38 and 13,476.96 is: 20,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.28 : 31,273.38 = 13,476.96 : x
  2. Step 2: Convert to fraction form
    20,933.28/31,273.38 = 13,476.96/x
  3. Step 3: Cross multiply
    20,933.28x = 31,273.38 × 13,476.96
  4. Step 4: Simplify right side
    20,933.28x = 421,470,091.32
  5. Step 5: Solve for x
    x = 421,470,091.32/20,933.28
  6. Step 6: Final answer
    x = 20,133.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.