Home / 20,933.23-31,426.49-13,568.51

Finding the Fourth Proportional to 20,933.23, 31,426.49 and 13,568.51

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Solution

The fourth proportional to 20,933.23, 31,426.49 and 13,568.51 is: 20,370.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.23 : 31,426.49 = 13,568.51 : x
  2. Step 2: Convert to fraction form
    20,933.23/31,426.49 = 13,568.51/x
  3. Step 3: Cross multiply
    20,933.23x = 31,426.49 × 13,568.51
  4. Step 4: Simplify right side
    20,933.23x = 426,410,520.62
  5. Step 5: Solve for x
    x = 426,410,520.62/20,933.23
  6. Step 6: Final answer
    x = 20,370.03

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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.