Home / 36,219.18-54,315.45-12,520.65

Finding the Fourth Proportional to 36,219.18, 54,315.45 and 12,520.65

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Solution

The fourth proportional to 36,219.18, 54,315.45 and 12,520.65 is: 18,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,219.18 : 54,315.45 = 12,520.65 : x
  2. Step 2: Convert to fraction form
    36,219.18/54,315.45 = 12,520.65/x
  3. Step 3: Cross multiply
    36,219.18x = 54,315.45 × 12,520.65
  4. Step 4: Simplify right side
    36,219.18x = 680,064,739.04
  5. Step 5: Solve for x
    x = 680,064,739.04/36,219.18
  6. Step 6: Final answer
    x = 18,776.37

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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.