Home / 30,247.67-45,371.57-9,187.86

Finding the Fourth Proportional to 30,247.67, 45,371.57 and 9,187.86

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Solution

The fourth proportional to 30,247.67, 45,371.57 and 9,187.86 is: 13,781.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.67 : 45,371.57 = 9,187.86 : x
  2. Step 2: Convert to fraction form
    30,247.67/45,371.57 = 9,187.86/x
  3. Step 3: Cross multiply
    30,247.67x = 45,371.57 × 9,187.86
  4. Step 4: Simplify right side
    30,247.67x = 416,867,587.20
  5. Step 5: Solve for x
    x = 416,867,587.20/30,247.67
  6. Step 6: Final answer
    x = 13,781.81

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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.