Home / 20,180.34-30,279.39-10,327.74

Finding the Fourth Proportional to 20,180.34, 30,279.39 and 10,327.74

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Solution

The fourth proportional to 20,180.34, 30,279.39 and 10,327.74 is: 15,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.34 : 30,279.39 = 10,327.74 : x
  2. Step 2: Convert to fraction form
    20,180.34/30,279.39 = 10,327.74/x
  3. Step 3: Cross multiply
    20,180.34x = 30,279.39 × 10,327.74
  4. Step 4: Simplify right side
    20,180.34x = 312,717,667.28
  5. Step 5: Solve for x
    x = 312,717,667.28/20,180.34
  6. Step 6: Final answer
    x = 15,496.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.