Home / 28,406.55-39,203.96-17,079.74

Finding the Fourth Proportional to 28,406.55, 39,203.96 and 17,079.74

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Solution

The fourth proportional to 28,406.55, 39,203.96 and 17,079.74 is: 23,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.55 : 39,203.96 = 17,079.74 : x
  2. Step 2: Convert to fraction form
    28,406.55/39,203.96 = 17,079.74/x
  3. Step 3: Cross multiply
    28,406.55x = 39,203.96 × 17,079.74
  4. Step 4: Simplify right side
    28,406.55x = 669,593,162.35
  5. Step 5: Solve for x
    x = 669,593,162.35/28,406.55
  6. Step 6: Final answer
    x = 23,571.79

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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.