Home / 40,251.88-55,528.30-28,321.80

Finding the Fourth Proportional to 40,251.88, 55,528.30 and 28,321.80

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Solution

The fourth proportional to 40,251.88, 55,528.30 and 28,321.80 is: 39,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,251.88 : 55,528.30 = 28,321.80 : x
  2. Step 2: Convert to fraction form
    40,251.88/55,528.30 = 28,321.80/x
  3. Step 3: Cross multiply
    40,251.88x = 55,528.30 × 28,321.80
  4. Step 4: Simplify right side
    40,251.88x = 1,572,661,406.94
  5. Step 5: Solve for x
    x = 1,572,661,406.94/40,251.88
  6. Step 6: Final answer
    x = 39,070.51

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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.