Home / 39,754.48-54,857.98-21,850.44

Finding the Fourth Proportional to 39,754.48, 54,857.98 and 21,850.44

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Solution

The fourth proportional to 39,754.48, 54,857.98 and 21,850.44 is: 30,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,754.48 : 54,857.98 = 21,850.44 : x
  2. Step 2: Convert to fraction form
    39,754.48/54,857.98 = 21,850.44/x
  3. Step 3: Cross multiply
    39,754.48x = 54,857.98 × 21,850.44
  4. Step 4: Simplify right side
    39,754.48x = 1,198,671,000.51
  5. Step 5: Solve for x
    x = 1,198,671,000.51/39,754.48
  6. Step 6: Final answer
    x = 30,151.85

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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.