Home / 20,184.20-30,276.30-17,721.80

Finding the Fourth Proportional to 20,184.20, 30,276.30 and 17,721.80

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Solution

The fourth proportional to 20,184.20, 30,276.30 and 17,721.80 is: 26,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.20 : 30,276.30 = 17,721.80 : x
  2. Step 2: Convert to fraction form
    20,184.20/30,276.30 = 17,721.80/x
  3. Step 3: Cross multiply
    20,184.20x = 30,276.30 × 17,721.80
  4. Step 4: Simplify right side
    20,184.20x = 536,550,533.34
  5. Step 5: Solve for x
    x = 536,550,533.34/20,184.20
  6. Step 6: Final answer
    x = 26,582.70

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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.