Home / 36,115.43-49,841.25-21,779.87

Finding the Fourth Proportional to 36,115.43, 49,841.25 and 21,779.87

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Solution

The fourth proportional to 36,115.43, 49,841.25 and 21,779.87 is: 30,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,115.43 : 49,841.25 = 21,779.87 : x
  2. Step 2: Convert to fraction form
    36,115.43/49,841.25 = 21,779.87/x
  3. Step 3: Cross multiply
    36,115.43x = 49,841.25 × 21,779.87
  4. Step 4: Simplify right side
    36,115.43x = 1,085,535,945.64
  5. Step 5: Solve for x
    x = 1,085,535,945.64/36,115.43
  6. Step 6: Final answer
    x = 30,057.40

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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.