Home / 20,732.96-31,090.28-5,938.52

Finding the Fourth Proportional to 20,732.96, 31,090.28 and 5,938.52

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Solution

The fourth proportional to 20,732.96, 31,090.28 and 5,938.52 is: 8,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.96 : 31,090.28 = 5,938.52 : x
  2. Step 2: Convert to fraction form
    20,732.96/31,090.28 = 5,938.52/x
  3. Step 3: Cross multiply
    20,732.96x = 31,090.28 × 5,938.52
  4. Step 4: Simplify right side
    20,732.96x = 184,630,249.59
  5. Step 5: Solve for x
    x = 184,630,249.59/20,732.96
  6. Step 6: Final answer
    x = 8,905.16

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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.