Home / 20,723.40-28,604.48-14,772.33

Finding the Fourth Proportional to 20,723.40, 28,604.48 and 14,772.33

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Solution

The fourth proportional to 20,723.40, 28,604.48 and 14,772.33 is: 20,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.40 : 28,604.48 = 14,772.33 : x
  2. Step 2: Convert to fraction form
    20,723.40/28,604.48 = 14,772.33/x
  3. Step 3: Cross multiply
    20,723.40x = 28,604.48 × 14,772.33
  4. Step 4: Simplify right side
    20,723.40x = 422,554,744.18
  5. Step 5: Solve for x
    x = 422,554,744.18/20,723.40
  6. Step 6: Final answer
    x = 20,390.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.