Home / 36,031.09-49,720.83-20,116.55

Finding the Fourth Proportional to 36,031.09, 49,720.83 and 20,116.55

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Solution

The fourth proportional to 36,031.09, 49,720.83 and 20,116.55 is: 27,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,031.09 : 49,720.83 = 20,116.55 : x
  2. Step 2: Convert to fraction form
    36,031.09/49,720.83 = 20,116.55/x
  3. Step 3: Cross multiply
    36,031.09x = 49,720.83 × 20,116.55
  4. Step 4: Simplify right side
    36,031.09x = 1,000,211,562.74
  5. Step 5: Solve for x
    x = 1,000,211,562.74/36,031.09
  6. Step 6: Final answer
    x = 27,759.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.