Home / 33,428.87-46,130.85-18,321.20

Finding the Fourth Proportional to 33,428.87, 46,130.85 and 18,321.20

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Solution

The fourth proportional to 33,428.87, 46,130.85 and 18,321.20 is: 25,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,428.87 : 46,130.85 = 18,321.20 : x
  2. Step 2: Convert to fraction form
    33,428.87/46,130.85 = 18,321.20/x
  3. Step 3: Cross multiply
    33,428.87x = 46,130.85 × 18,321.20
  4. Step 4: Simplify right side
    33,428.87x = 845,172,298.37
  5. Step 5: Solve for x
    x = 845,172,298.37/33,428.87
  6. Step 6: Final answer
    x = 25,282.71

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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.