Home / 39,225.43-54,131.42-21,320.44

Finding the Fourth Proportional to 39,225.43, 54,131.42 and 21,320.44

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Solution

The fourth proportional to 39,225.43, 54,131.42 and 21,320.44 is: 29,422.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,225.43 : 54,131.42 = 21,320.44 : x
  2. Step 2: Convert to fraction form
    39,225.43/54,131.42 = 21,320.44/x
  3. Step 3: Cross multiply
    39,225.43x = 54,131.42 × 21,320.44
  4. Step 4: Simplify right side
    39,225.43x = 1,154,105,692.22
  5. Step 5: Solve for x
    x = 1,154,105,692.22/39,225.43
  6. Step 6: Final answer
    x = 29,422.38

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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.