Home / 20,539.36-30,812.80-6,502.92

Finding the Fourth Proportional to 20,539.36, 30,812.80 and 6,502.92

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Solution

The fourth proportional to 20,539.36, 30,812.80 and 6,502.92 is: 9,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.36 : 30,812.80 = 6,502.92 : x
  2. Step 2: Convert to fraction form
    20,539.36/30,812.80 = 6,502.92/x
  3. Step 3: Cross multiply
    20,539.36x = 30,812.80 × 6,502.92
  4. Step 4: Simplify right side
    20,539.36x = 200,373,173.38
  5. Step 5: Solve for x
    x = 200,373,173.38/20,539.36
  6. Step 6: Final answer
    x = 9,755.57

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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.