Home / 20,102.86-30,156.62-7,632.19

Finding the Fourth Proportional to 20,102.86, 30,156.62 and 7,632.19

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Solution

The fourth proportional to 20,102.86, 30,156.62 and 7,632.19 is: 11,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.86 : 30,156.62 = 7,632.19 : x
  2. Step 2: Convert to fraction form
    20,102.86/30,156.62 = 7,632.19/x
  3. Step 3: Cross multiply
    20,102.86x = 30,156.62 × 7,632.19
  4. Step 4: Simplify right side
    20,102.86x = 230,161,053.60
  5. Step 5: Solve for x
    x = 230,161,053.60/20,102.86
  6. Step 6: Final answer
    x = 11,449.17

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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.