Home / 20,319.15-30,467.25-9,488.10

Finding the Fourth Proportional to 20,319.15, 30,467.25 and 9,488.10

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Solution

The fourth proportional to 20,319.15, 30,467.25 and 9,488.10 is: 14,226.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.15 : 30,467.25 = 9,488.10 : x
  2. Step 2: Convert to fraction form
    20,319.15/30,467.25 = 9,488.10/x
  3. Step 3: Cross multiply
    20,319.15x = 30,467.25 × 9,488.10
  4. Step 4: Simplify right side
    20,319.15x = 289,076,314.73
  5. Step 5: Solve for x
    x = 289,076,314.73/20,319.15
  6. Step 6: Final answer
    x = 14,226.79

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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.