Home / 35,139.40-52,712.78-11,448.79

Finding the Fourth Proportional to 35,139.40, 52,712.78 and 11,448.79

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Solution

The fourth proportional to 35,139.40, 52,712.78 and 11,448.79 is: 17,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,139.40 : 52,712.78 = 11,448.79 : x
  2. Step 2: Convert to fraction form
    35,139.40/52,712.78 = 11,448.79/x
  3. Step 3: Cross multiply
    35,139.40x = 52,712.78 × 11,448.79
  4. Step 4: Simplify right side
    35,139.40x = 603,497,548.54
  5. Step 5: Solve for x
    x = 603,497,548.54/35,139.40
  6. Step 6: Final answer
    x = 17,174.38

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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.