Home / 39,356.22-54,311.27-21,450.90

Finding the Fourth Proportional to 39,356.22, 54,311.27 and 21,450.90

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Solution

The fourth proportional to 39,356.22, 54,311.27 and 21,450.90 is: 29,602.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.22 : 54,311.27 = 21,450.90 : x
  2. Step 2: Convert to fraction form
    39,356.22/54,311.27 = 21,450.90/x
  3. Step 3: Cross multiply
    39,356.22x = 54,311.27 × 21,450.90
  4. Step 4: Simplify right side
    39,356.22x = 1,165,025,514.39
  5. Step 5: Solve for x
    x = 1,165,025,514.39/39,356.22
  6. Step 6: Final answer
    x = 29,602.07

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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.