Home / 40,721.36-61,078.20-13,011.92

Finding the Fourth Proportional to 40,721.36, 61,078.20 and 13,011.92

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Solution

The fourth proportional to 40,721.36, 61,078.20 and 13,011.92 is: 19,516.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,721.36 : 61,078.20 = 13,011.92 : x
  2. Step 2: Convert to fraction form
    40,721.36/61,078.20 = 13,011.92/x
  3. Step 3: Cross multiply
    40,721.36x = 61,078.20 × 13,011.92
  4. Step 4: Simplify right side
    40,721.36x = 794,744,652.14
  5. Step 5: Solve for x
    x = 794,744,652.14/40,721.36
  6. Step 6: Final answer
    x = 19,516.65

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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.