Home / 20,527.06-28,331.87-13,344.48

Finding the Fourth Proportional to 20,527.06, 28,331.87 and 13,344.48

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Solution

The fourth proportional to 20,527.06, 28,331.87 and 13,344.48 is: 18,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.06 : 28,331.87 = 13,344.48 : x
  2. Step 2: Convert to fraction form
    20,527.06/28,331.87 = 13,344.48/x
  3. Step 3: Cross multiply
    20,527.06x = 28,331.87 × 13,344.48
  4. Step 4: Simplify right side
    20,527.06x = 378,074,072.58
  5. Step 5: Solve for x
    x = 378,074,072.58/20,527.06
  6. Step 6: Final answer
    x = 18,418.33

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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.