Home / 20,958.60-31,433.04-9,265.44

Finding the Fourth Proportional to 20,958.60, 31,433.04 and 9,265.44

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Solution

The fourth proportional to 20,958.60, 31,433.04 and 9,265.44 is: 13,896.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.60 : 31,433.04 = 9,265.44 : x
  2. Step 2: Convert to fraction form
    20,958.60/31,433.04 = 9,265.44/x
  3. Step 3: Cross multiply
    20,958.60x = 31,433.04 × 9,265.44
  4. Step 4: Simplify right side
    20,958.60x = 291,240,946.14
  5. Step 5: Solve for x
    x = 291,240,946.14/20,958.60
  6. Step 6: Final answer
    x = 13,896.01

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1.5x scale

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.