Home / 20,124.08-27,769.91-11,171.58

Finding the Fourth Proportional to 20,124.08, 27,769.91 and 11,171.58

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Solution

The fourth proportional to 20,124.08, 27,769.91 and 11,171.58 is: 15,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124.08 : 27,769.91 = 11,171.58 : x
  2. Step 2: Convert to fraction form
    20,124.08/27,769.91 = 11,171.58/x
  3. Step 3: Cross multiply
    20,124.08x = 27,769.91 × 11,171.58
  4. Step 4: Simplify right side
    20,124.08x = 310,233,771.16
  5. Step 5: Solve for x
    x = 310,233,771.16/20,124.08
  6. Step 6: Final answer
    x = 15,416.05

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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.