Home / 20,559.14-28,372.90-11,603.38

Finding the Fourth Proportional to 20,559.14, 28,372.90 and 11,603.38

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Solution

The fourth proportional to 20,559.14, 28,372.90 and 11,603.38 is: 16,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.14 : 28,372.90 = 11,603.38 : x
  2. Step 2: Convert to fraction form
    20,559.14/28,372.90 = 11,603.38/x
  3. Step 3: Cross multiply
    20,559.14x = 28,372.90 × 11,603.38
  4. Step 4: Simplify right side
    20,559.14x = 329,221,540.40
  5. Step 5: Solve for x
    x = 329,221,540.40/20,559.14
  6. Step 6: Final answer
    x = 16,013.39

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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.