Home / 38,341.25-52,912.09-20,879.72

Finding the Fourth Proportional to 38,341.25, 52,912.09 and 20,879.72

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Solution

The fourth proportional to 38,341.25, 52,912.09 and 20,879.72 is: 28,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,341.25 : 52,912.09 = 20,879.72 : x
  2. Step 2: Convert to fraction form
    38,341.25/52,912.09 = 20,879.72/x
  3. Step 3: Cross multiply
    38,341.25x = 52,912.09 × 20,879.72
  4. Step 4: Simplify right side
    38,341.25x = 1,104,789,782.19
  5. Step 5: Solve for x
    x = 1,104,789,782.19/38,341.25
  6. Step 6: Final answer
    x = 28,814.65

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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.