Home / 30,164.20-45,246.30-19,666.60

Finding the Fourth Proportional to 30,164.20, 45,246.30 and 19,666.60

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Solution

The fourth proportional to 30,164.20, 45,246.30 and 19,666.60 is: 29,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,164.20 : 45,246.30 = 19,666.60 : x
  2. Step 2: Convert to fraction form
    30,164.20/45,246.30 = 19,666.60/x
  3. Step 3: Cross multiply
    30,164.20x = 45,246.30 × 19,666.60
  4. Step 4: Simplify right side
    30,164.20x = 889,840,883.58
  5. Step 5: Solve for x
    x = 889,840,883.58/30,164.20
  6. Step 6: Final answer
    x = 29,499.90

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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.