Home / 20,250.34-27,945.07-11,176.55

Finding the Fourth Proportional to 20,250.34, 27,945.07 and 11,176.55

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Solution

The fourth proportional to 20,250.34, 27,945.07 and 11,176.55 is: 15,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.34 : 27,945.07 = 11,176.55 : x
  2. Step 2: Convert to fraction form
    20,250.34/27,945.07 = 11,176.55/x
  3. Step 3: Cross multiply
    20,250.34x = 27,945.07 × 11,176.55
  4. Step 4: Simplify right side
    20,250.34x = 312,329,416.23
  5. Step 5: Solve for x
    x = 312,329,416.23/20,250.34
  6. Step 6: Final answer
    x = 15,423.42

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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.