Home / 30,247.40-45,371.10-18,567.20

Finding the Fourth Proportional to 30,247.40, 45,371.10 and 18,567.20

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Solution

The fourth proportional to 30,247.40, 45,371.10 and 18,567.20 is: 27,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.40 : 45,371.10 = 18,567.20 : x
  2. Step 2: Convert to fraction form
    30,247.40/45,371.10 = 18,567.20/x
  3. Step 3: Cross multiply
    30,247.40x = 45,371.10 × 18,567.20
  4. Step 4: Simplify right side
    30,247.40x = 842,414,287.92
  5. Step 5: Solve for x
    x = 842,414,287.92/30,247.40
  6. Step 6: Final answer
    x = 27,850.80

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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.