Home / 36,621.40-54,932.10-8,919.40

Finding the Fourth Proportional to 36,621.40, 54,932.10 and 8,919.40

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Solution

The fourth proportional to 36,621.40, 54,932.10 and 8,919.40 is: 13,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,621.40 : 54,932.10 = 8,919.40 : x
  2. Step 2: Convert to fraction form
    36,621.40/54,932.10 = 8,919.40/x
  3. Step 3: Cross multiply
    36,621.40x = 54,932.10 × 8,919.40
  4. Step 4: Simplify right side
    36,621.40x = 489,961,372.74
  5. Step 5: Solve for x
    x = 489,961,372.74/36,621.40
  6. Step 6: Final answer
    x = 13,379.10

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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.