Home / 20,035.86-27,649.76-12,485.24

Finding the Fourth Proportional to 20,035.86, 27,649.76 and 12,485.24

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Solution

The fourth proportional to 20,035.86, 27,649.76 and 12,485.24 is: 17,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.86 : 27,649.76 = 12,485.24 : x
  2. Step 2: Convert to fraction form
    20,035.86/27,649.76 = 12,485.24/x
  3. Step 3: Cross multiply
    20,035.86x = 27,649.76 × 12,485.24
  4. Step 4: Simplify right side
    20,035.86x = 345,213,792.55
  5. Step 5: Solve for x
    x = 345,213,792.55/20,035.86
  6. Step 6: Final answer
    x = 17,229.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.