Home / 38,372.87-52,953.41-21,377.12

Finding the Fourth Proportional to 38,372.87, 52,953.41 and 21,377.12

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Solution

The fourth proportional to 38,372.87, 52,953.41 and 21,377.12 is: 29,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,372.87 : 52,953.41 = 21,377.12 : x
  2. Step 2: Convert to fraction form
    38,372.87/52,953.41 = 21,377.12/x
  3. Step 3: Cross multiply
    38,372.87x = 52,953.41 × 21,377.12
  4. Step 4: Simplify right side
    38,372.87x = 1,131,991,188.65
  5. Step 5: Solve for x
    x = 1,131,991,188.65/38,372.87
  6. Step 6: Final answer
    x = 29,499.78

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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.