Home / 36,421.89-54,619.58-12,722.79

Finding the Fourth Proportional to 36,421.89, 54,619.58 and 12,722.79

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Solution

The fourth proportional to 36,421.89, 54,619.58 and 12,722.79 is: 19,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,421.89 : 54,619.58 = 12,722.79 : x
  2. Step 2: Convert to fraction form
    36,421.89/54,619.58 = 12,722.79/x
  3. Step 3: Cross multiply
    36,421.89x = 54,619.58 × 12,722.79
  4. Step 4: Simplify right side
    36,421.89x = 694,913,382.61
  5. Step 5: Solve for x
    x = 694,913,382.61/36,421.89
  6. Step 6: Final answer
    x = 19,079.55

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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.