Home / 20,119.15-30,179.35-9,590.31

Finding the Fourth Proportional to 20,119.15, 30,179.35 and 9,590.31

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Solution

The fourth proportional to 20,119.15, 30,179.35 and 9,590.31 is: 14,385.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.15 : 30,179.35 = 9,590.31 : x
  2. Step 2: Convert to fraction form
    20,119.15/30,179.35 = 9,590.31/x
  3. Step 3: Cross multiply
    20,119.15x = 30,179.35 × 9,590.31
  4. Step 4: Simplify right side
    20,119.15x = 289,429,334.09
  5. Step 5: Solve for x
    x = 289,429,334.09/20,119.15
  6. Step 6: Final answer
    x = 14,385.77

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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.