Home / 36,047.68-49,742.56-20,131.72

Finding the Fourth Proportional to 36,047.68, 49,742.56 and 20,131.72

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Solution

The fourth proportional to 36,047.68, 49,742.56 and 20,131.72 is: 27,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,047.68 : 49,742.56 = 20,131.72 : x
  2. Step 2: Convert to fraction form
    36,047.68/49,742.56 = 20,131.72/x
  3. Step 3: Cross multiply
    36,047.68x = 49,742.56 × 20,131.72
  4. Step 4: Simplify right side
    36,047.68x = 1,001,403,290.00
  5. Step 5: Solve for x
    x = 1,001,403,290.00/36,047.68
  6. Step 6: Final answer
    x = 27,779.97

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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.