Home / 28,406.30-39,203.61-17,079.49

Finding the Fourth Proportional to 28,406.30, 39,203.61 and 17,079.49

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Solution

The fourth proportional to 28,406.30, 39,203.61 and 17,079.49 is: 23,571.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.30 : 39,203.61 = 17,079.49 : x
  2. Step 2: Convert to fraction form
    28,406.30/39,203.61 = 17,079.49/x
  3. Step 3: Cross multiply
    28,406.30x = 39,203.61 × 17,079.49
  4. Step 4: Simplify right side
    28,406.30x = 669,577,468.94
  5. Step 5: Solve for x
    x = 669,577,468.94/28,406.30
  6. Step 6: Final answer
    x = 23,571.44

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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.