Home / 30,198.93-45,247.23-18,487.68

Finding the Fourth Proportional to 30,198.93, 45,247.23 and 18,487.68

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Solution

The fourth proportional to 30,198.93, 45,247.23 and 18,487.68 is: 27,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,198.93 : 45,247.23 = 18,487.68 : x
  2. Step 2: Convert to fraction form
    30,198.93/45,247.23 = 18,487.68/x
  3. Step 3: Cross multiply
    30,198.93x = 45,247.23 × 18,487.68
  4. Step 4: Simplify right side
    30,198.93x = 836,516,309.13
  5. Step 5: Solve for x
    x = 836,516,309.13/30,198.93
  6. Step 6: Final answer
    x = 27,700.20

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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.