Home / 20,164.20-30,246.30-19,357.80

Finding the Fourth Proportional to 20,164.20, 30,246.30 and 19,357.80

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Solution

The fourth proportional to 20,164.20, 30,246.30 and 19,357.80 is: 29,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.20 : 30,246.30 = 19,357.80 : x
  2. Step 2: Convert to fraction form
    20,164.20/30,246.30 = 19,357.80/x
  3. Step 3: Cross multiply
    20,164.20x = 30,246.30 × 19,357.80
  4. Step 4: Simplify right side
    20,164.20x = 585,501,826.14
  5. Step 5: Solve for x
    x = 585,501,826.14/20,164.20
  6. Step 6: Final answer
    x = 29,036.70

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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.