Home / 20,356.30-30,538.81-6,316.03

Finding the Fourth Proportional to 20,356.30, 30,538.81 and 6,316.03

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Solution

The fourth proportional to 20,356.30, 30,538.81 and 6,316.03 is: 9,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.30 : 30,538.81 = 6,316.03 : x
  2. Step 2: Convert to fraction form
    20,356.30/30,538.81 = 6,316.03/x
  3. Step 3: Cross multiply
    20,356.30x = 30,538.81 × 6,316.03
  4. Step 4: Simplify right side
    20,356.30x = 192,883,887.43
  5. Step 5: Solve for x
    x = 192,883,887.43/20,356.30
  6. Step 6: Final answer
    x = 9,475.39

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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.