Home / 37,055.21-51,135.71-21,139.92

Finding the Fourth Proportional to 37,055.21, 51,135.71 and 21,139.92

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Solution

The fourth proportional to 37,055.21, 51,135.71 and 21,139.92 is: 29,172.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,055.21 : 51,135.71 = 21,139.92 : x
  2. Step 2: Convert to fraction form
    37,055.21/51,135.71 = 21,139.92/x
  3. Step 3: Cross multiply
    37,055.21x = 51,135.71 × 21,139.92
  4. Step 4: Simplify right side
    37,055.21x = 1,081,004,712.84
  5. Step 5: Solve for x
    x = 1,081,004,712.84/37,055.21
  6. Step 6: Final answer
    x = 29,172.82

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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.