Home / 38,145.85-57,144.97-21,455.17

Finding the Fourth Proportional to 38,145.85, 57,144.97 and 21,455.17

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Solution

The fourth proportional to 38,145.85, 57,144.97 and 21,455.17 is: 32,141.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,145.85 : 57,144.97 = 21,455.17 : x
  2. Step 2: Convert to fraction form
    38,145.85/57,144.97 = 21,455.17/x
  3. Step 3: Cross multiply
    38,145.85x = 57,144.97 × 21,455.17
  4. Step 4: Simplify right side
    38,145.85x = 1,226,055,045.99
  5. Step 5: Solve for x
    x = 1,226,055,045.99/38,145.85
  6. Step 6: Final answer
    x = 32,141.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.