Home / 20,068.20-30,116.70-11,293.80

Finding the Fourth Proportional to 20,068.20, 30,116.70 and 11,293.80

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Solution

The fourth proportional to 20,068.20, 30,116.70 and 11,293.80 is: 16,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.20 : 30,116.70 = 11,293.80 : x
  2. Step 2: Convert to fraction form
    20,068.20/30,116.70 = 11,293.80/x
  3. Step 3: Cross multiply
    20,068.20x = 30,116.70 × 11,293.80
  4. Step 4: Simplify right side
    20,068.20x = 340,131,986.46
  5. Step 5: Solve for x
    x = 340,131,986.46/20,068.20
  6. Step 6: Final answer
    x = 16,948.80

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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.