Home / 20,995.48-31,496.58-6,956.02

Finding the Fourth Proportional to 20,995.48, 31,496.58 and 6,956.02

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Solution

The fourth proportional to 20,995.48, 31,496.58 and 6,956.02 is: 10,435.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.48 : 31,496.58 = 6,956.02 : x
  2. Step 2: Convert to fraction form
    20,995.48/31,496.58 = 6,956.02/x
  3. Step 3: Cross multiply
    20,995.48x = 31,496.58 × 6,956.02
  4. Step 4: Simplify right side
    20,995.48x = 219,090,840.41
  5. Step 5: Solve for x
    x = 219,090,840.41/20,995.48
  6. Step 6: Final answer
    x = 10,435.14

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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.