Home / 20,314.96-28,035.39-11,362.43

Finding the Fourth Proportional to 20,314.96, 28,035.39 and 11,362.43

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Solution

The fourth proportional to 20,314.96, 28,035.39 and 11,362.43 is: 15,680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.96 : 28,035.39 = 11,362.43 : x
  2. Step 2: Convert to fraction form
    20,314.96/28,035.39 = 11,362.43/x
  3. Step 3: Cross multiply
    20,314.96x = 28,035.39 × 11,362.43
  4. Step 4: Simplify right side
    20,314.96x = 318,550,156.40
  5. Step 5: Solve for x
    x = 318,550,156.40/20,314.96
  6. Step 6: Final answer
    x = 15,680.57

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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.