Home / 20,173.30-30,275.70-13,976.80

Finding the Fourth Proportional to 20,173.30, 30,275.70 and 13,976.80

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Solution

The fourth proportional to 20,173.30, 30,275.70 and 13,976.80 is: 20,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.30 : 30,275.70 = 13,976.80 : x
  2. Step 2: Convert to fraction form
    20,173.30/30,275.70 = 13,976.80/x
  3. Step 3: Cross multiply
    20,173.30x = 30,275.70 × 13,976.80
  4. Step 4: Simplify right side
    20,173.30x = 423,157,403.76
  5. Step 5: Solve for x
    x = 423,157,403.76/20,173.30
  6. Step 6: Final answer
    x = 20,976.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.