Home / 20,299.82-28,011.87-11,346.08

Finding the Fourth Proportional to 20,299.82, 28,011.87 and 11,346.08

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Solution

The fourth proportional to 20,299.82, 28,011.87 and 11,346.08 is: 15,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.82 : 28,011.87 = 11,346.08 : x
  2. Step 2: Convert to fraction form
    20,299.82/28,011.87 = 11,346.08/x
  3. Step 3: Cross multiply
    20,299.82x = 28,011.87 × 11,346.08
  4. Step 4: Simplify right side
    20,299.82x = 317,824,777.91
  5. Step 5: Solve for x
    x = 317,824,777.91/20,299.82
  6. Step 6: Final answer
    x = 15,656.54

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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.