Home / 20,699.40-31,052.20-9,607.22

Finding the Fourth Proportional to 20,699.40, 31,052.20 and 9,607.22

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Solution

The fourth proportional to 20,699.40, 31,052.20 and 9,607.22 is: 14,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.40 : 31,052.20 = 9,607.22 : x
  2. Step 2: Convert to fraction form
    20,699.40/31,052.20 = 9,607.22/x
  3. Step 3: Cross multiply
    20,699.40x = 31,052.20 × 9,607.22
  4. Step 4: Simplify right side
    20,699.40x = 298,325,316.88
  5. Step 5: Solve for x
    x = 298,325,316.88/20,699.40
  6. Step 6: Final answer
    x = 14,412.27

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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.