Home / 20,746.52-31,090.60-9,035.20

Finding the Fourth Proportional to 20,746.52, 31,090.60 and 9,035.20

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Solution

The fourth proportional to 20,746.52, 31,090.60 and 9,035.20 is: 13,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.52 : 31,090.60 = 9,035.20 : x
  2. Step 2: Convert to fraction form
    20,746.52/31,090.60 = 9,035.20/x
  3. Step 3: Cross multiply
    20,746.52x = 31,090.60 × 9,035.20
  4. Step 4: Simplify right side
    20,746.52x = 280,909,789.12
  5. Step 5: Solve for x
    x = 280,909,789.12/20,746.52
  6. Step 6: Final answer
    x = 13,540.09

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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.