Home / 20,002.87-27,603.12-11,504.35

Finding the Fourth Proportional to 20,002.87, 27,603.12 and 11,504.35

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Solution

The fourth proportional to 20,002.87, 27,603.12 and 11,504.35 is: 15,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002.87 : 27,603.12 = 11,504.35 : x
  2. Step 2: Convert to fraction form
    20,002.87/27,603.12 = 11,504.35/x
  3. Step 3: Cross multiply
    20,002.87x = 27,603.12 × 11,504.35
  4. Step 4: Simplify right side
    20,002.87x = 317,555,815.56
  5. Step 5: Solve for x
    x = 317,555,815.56/20,002.87
  6. Step 6: Final answer
    x = 15,875.52

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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.