Home / 20,381.94-30,565.44-7,051.56

Finding the Fourth Proportional to 20,381.94, 30,565.44 and 7,051.56

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Solution

The fourth proportional to 20,381.94, 30,565.44 and 7,051.56 is: 10,574.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.94 : 30,565.44 = 7,051.56 : x
  2. Step 2: Convert to fraction form
    20,381.94/30,565.44 = 7,051.56/x
  3. Step 3: Cross multiply
    20,381.94x = 30,565.44 × 7,051.56
  4. Step 4: Simplify right side
    20,381.94x = 215,534,034.09
  5. Step 5: Solve for x
    x = 215,534,034.09/20,381.94
  6. Step 6: Final answer
    x = 10,574.76

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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.