Home / 20,392.20-30,567.63-13,819.05

Finding the Fourth Proportional to 20,392.20, 30,567.63 and 13,819.05

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Solution

The fourth proportional to 20,392.20, 30,567.63 and 13,819.05 is: 20,714.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392.20 : 30,567.63 = 13,819.05 : x
  2. Step 2: Convert to fraction form
    20,392.20/30,567.63 = 13,819.05/x
  3. Step 3: Cross multiply
    20,392.20x = 30,567.63 × 13,819.05
  4. Step 4: Simplify right side
    20,392.20x = 422,415,607.35
  5. Step 5: Solve for x
    x = 422,415,607.35/20,392.20
  6. Step 6: Final answer
    x = 20,714.57

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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.