Home / 30,206.10-45,309.15-25,321.80

Finding the Fourth Proportional to 30,206.10, 45,309.15 and 25,321.80

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Solution

The fourth proportional to 30,206.10, 45,309.15 and 25,321.80 is: 37,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.10 : 45,309.15 = 25,321.80 : x
  2. Step 2: Convert to fraction form
    30,206.10/45,309.15 = 25,321.80/x
  3. Step 3: Cross multiply
    30,206.10x = 45,309.15 × 25,321.80
  4. Step 4: Simplify right side
    30,206.10x = 1,147,309,234.47
  5. Step 5: Solve for x
    x = 1,147,309,234.47/30,206.10
  6. Step 6: Final answer
    x = 37,982.70

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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.