Home / 39,255.99-54,172.73-21,350.61

Finding the Fourth Proportional to 39,255.99, 54,172.73 and 21,350.61

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Solution

The fourth proportional to 39,255.99, 54,172.73 and 21,350.61 is: 29,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,255.99 : 54,172.73 = 21,350.61 : x
  2. Step 2: Convert to fraction form
    39,255.99/54,172.73 = 21,350.61/x
  3. Step 3: Cross multiply
    39,255.99x = 54,172.73 × 21,350.61
  4. Step 4: Simplify right side
    39,255.99x = 1,156,620,830.87
  5. Step 5: Solve for x
    x = 1,156,620,830.87/39,255.99
  6. Step 6: Final answer
    x = 29,463.55

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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.