Home / 40,402.78-55,760.73-23,181.45

Finding the Fourth Proportional to 40,402.78, 55,760.73 and 23,181.45

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Solution

The fourth proportional to 40,402.78, 55,760.73 and 23,181.45 is: 31,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,402.78 : 55,760.73 = 23,181.45 : x
  2. Step 2: Convert to fraction form
    40,402.78/55,760.73 = 23,181.45/x
  3. Step 3: Cross multiply
    40,402.78x = 55,760.73 × 23,181.45
  4. Step 4: Simplify right side
    40,402.78x = 1,292,614,574.46
  5. Step 5: Solve for x
    x = 1,292,614,574.46/40,402.78
  6. Step 6: Final answer
    x = 31,993.21

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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.