Home / 20,314.05-28,034.47-11,361.52

Finding the Fourth Proportional to 20,314.05, 28,034.47 and 11,361.52

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Solution

The fourth proportional to 20,314.05, 28,034.47 and 11,361.52 is: 15,679.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.05 : 28,034.47 = 11,361.52 : x
  2. Step 2: Convert to fraction form
    20,314.05/28,034.47 = 11,361.52/x
  3. Step 3: Cross multiply
    20,314.05x = 28,034.47 × 11,361.52
  4. Step 4: Simplify right side
    20,314.05x = 318,514,191.59
  5. Step 5: Solve for x
    x = 318,514,191.59/20,314.05
  6. Step 6: Final answer
    x = 15,679.50

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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.