Home / 20,189.64-30,276.36-8,345.24

Finding the Fourth Proportional to 20,189.64, 30,276.36 and 8,345.24

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Solution

The fourth proportional to 20,189.64, 30,276.36 and 8,345.24 is: 12,514.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.64 : 30,276.36 = 8,345.24 : x
  2. Step 2: Convert to fraction form
    20,189.64/30,276.36 = 8,345.24/x
  3. Step 3: Cross multiply
    20,189.64x = 30,276.36 × 8,345.24
  4. Step 4: Simplify right side
    20,189.64x = 252,663,339.14
  5. Step 5: Solve for x
    x = 252,663,339.14/20,189.64
  6. Step 6: Final answer
    x = 12,514.50

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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.