Home / 20,954.48-31,420.08-9,697.52

Finding the Fourth Proportional to 20,954.48, 31,420.08 and 9,697.52

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Solution

The fourth proportional to 20,954.48, 31,420.08 and 9,697.52 is: 14,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.48 : 31,420.08 = 9,697.52 : x
  2. Step 2: Convert to fraction form
    20,954.48/31,420.08 = 9,697.52/x
  3. Step 3: Cross multiply
    20,954.48x = 31,420.08 × 9,697.52
  4. Step 4: Simplify right side
    20,954.48x = 304,696,854.20
  5. Step 5: Solve for x
    x = 304,696,854.20/20,954.48
  6. Step 6: Final answer
    x = 14,540.89

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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.