Home / 20,359.86-30,559.50-9,837.28

Finding the Fourth Proportional to 20,359.86, 30,559.50 and 9,837.28

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Solution

The fourth proportional to 20,359.86, 30,559.50 and 9,837.28 is: 14,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.86 : 30,559.50 = 9,837.28 : x
  2. Step 2: Convert to fraction form
    20,359.86/30,559.50 = 9,837.28/x
  3. Step 3: Cross multiply
    20,359.86x = 30,559.50 × 9,837.28
  4. Step 4: Simplify right side
    20,359.86x = 300,622,308.97
  5. Step 5: Solve for x
    x = 300,622,308.97/20,359.86
  6. Step 6: Final answer
    x = 14,765.44

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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.