Home / 38,425.87-53,027.99-21,431.21

Finding the Fourth Proportional to 38,425.87, 53,027.99 and 21,431.21

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Solution

The fourth proportional to 38,425.87, 53,027.99 and 21,431.21 is: 29,575.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,425.87 : 53,027.99 = 21,431.21 : x
  2. Step 2: Convert to fraction form
    38,425.87/53,027.99 = 21,431.21/x
  3. Step 3: Cross multiply
    38,425.87x = 53,027.99 × 21,431.21
  4. Step 4: Simplify right side
    38,425.87x = 1,136,453,907.06
  5. Step 5: Solve for x
    x = 1,136,453,907.06/38,425.87
  6. Step 6: Final answer
    x = 29,575.23

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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.