Home / 40,171.68-55,438.56-23,181.12

Finding the Fourth Proportional to 40,171.68, 55,438.56 and 23,181.12

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Solution

The fourth proportional to 40,171.68, 55,438.56 and 23,181.12 is: 31,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,171.68 : 55,438.56 = 23,181.12 : x
  2. Step 2: Convert to fraction form
    40,171.68/55,438.56 = 23,181.12/x
  3. Step 3: Cross multiply
    40,171.68x = 55,438.56 × 23,181.12
  4. Step 4: Simplify right side
    40,171.68x = 1,285,127,911.99
  5. Step 5: Solve for x
    x = 1,285,127,911.99/40,171.68
  6. Step 6: Final answer
    x = 31,990.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.