Home / 20,557.62-28,370.03-11,605.25

Finding the Fourth Proportional to 20,557.62, 28,370.03 and 11,605.25

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Solution

The fourth proportional to 20,557.62, 28,370.03 and 11,605.25 is: 16,015.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.62 : 28,370.03 = 11,605.25 : x
  2. Step 2: Convert to fraction form
    20,557.62/28,370.03 = 11,605.25/x
  3. Step 3: Cross multiply
    20,557.62x = 28,370.03 × 11,605.25
  4. Step 4: Simplify right side
    20,557.62x = 329,241,303.56
  5. Step 5: Solve for x
    x = 329,241,303.56/20,557.62
  6. Step 6: Final answer
    x = 16,015.54

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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.