Home / 20,145.86-30,224.25-6,105.32

Finding the Fourth Proportional to 20,145.86, 30,224.25 and 6,105.32

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Solution

The fourth proportional to 20,145.86, 30,224.25 and 6,105.32 is: 9,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.86 : 30,224.25 = 6,105.32 : x
  2. Step 2: Convert to fraction form
    20,145.86/30,224.25 = 6,105.32/x
  3. Step 3: Cross multiply
    20,145.86x = 30,224.25 × 6,105.32
  4. Step 4: Simplify right side
    20,145.86x = 184,528,566.89
  5. Step 5: Solve for x
    x = 184,528,566.89/20,145.86
  6. Step 6: Final answer
    x = 9,159.63

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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.