Home / 20,748.94-28,632.67-11,316.94

Finding the Fourth Proportional to 20,748.94, 28,632.67 and 11,316.94

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Solution

The fourth proportional to 20,748.94, 28,632.67 and 11,316.94 is: 15,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.94 : 28,632.67 = 11,316.94 : x
  2. Step 2: Convert to fraction form
    20,748.94/28,632.67 = 11,316.94/x
  3. Step 3: Cross multiply
    20,748.94x = 28,632.67 × 11,316.94
  4. Step 4: Simplify right side
    20,748.94x = 324,034,208.43
  5. Step 5: Solve for x
    x = 324,034,208.43/20,748.94
  6. Step 6: Final answer
    x = 15,616.90

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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.