Home / 20,191.64-30,279.26-8,794.18

Finding the Fourth Proportional to 20,191.64, 30,279.26 and 8,794.18

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Solution

The fourth proportional to 20,191.64, 30,279.26 and 8,794.18 is: 13,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.64 : 30,279.26 = 8,794.18 : x
  2. Step 2: Convert to fraction form
    20,191.64/30,279.26 = 8,794.18/x
  3. Step 3: Cross multiply
    20,191.64x = 30,279.26 × 8,794.18
  4. Step 4: Simplify right side
    20,191.64x = 266,281,262.71
  5. Step 5: Solve for x
    x = 266,281,262.71/20,191.64
  6. Step 6: Final answer
    x = 13,187.70

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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.