Home / 40,134.09-55,384.49-23,138.37

Finding the Fourth Proportional to 40,134.09, 55,384.49 and 23,138.37

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Solution

The fourth proportional to 40,134.09, 55,384.49 and 23,138.37 is: 31,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,134.09 : 55,384.49 = 23,138.37 : x
  2. Step 2: Convert to fraction form
    40,134.09/55,384.49 = 23,138.37/x
  3. Step 3: Cross multiply
    40,134.09x = 55,384.49 × 23,138.37
  4. Step 4: Simplify right side
    40,134.09x = 1,281,506,821.88
  5. Step 5: Solve for x
    x = 1,281,506,821.88/40,134.09
  6. Step 6: Final answer
    x = 31,930.63

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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.