Home / 20,314.27-28,034.30-11,361.58

Finding the Fourth Proportional to 20,314.27, 28,034.30 and 11,361.58

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Solution

The fourth proportional to 20,314.27, 28,034.30 and 11,361.58 is: 15,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.27 : 28,034.30 = 11,361.58 : x
  2. Step 2: Convert to fraction form
    20,314.27/28,034.30 = 11,361.58/x
  3. Step 3: Cross multiply
    20,314.27x = 28,034.30 × 11,361.58
  4. Step 4: Simplify right side
    20,314.27x = 318,513,942.19
  5. Step 5: Solve for x
    x = 318,513,942.19/20,314.27
  6. Step 6: Final answer
    x = 15,679.32

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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.