Home / 40,822.16-61,228.92-13,118

Finding the Fourth Proportional to 40,822.16, 61,228.92 and 13,118

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Solution

The fourth proportional to 40,822.16, 61,228.92 and 13,118 is: 19,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,822.16 : 61,228.92 = 13,118 : x
  2. Step 2: Convert to fraction form
    40,822.16/61,228.92 = 13,118/x
  3. Step 3: Cross multiply
    40,822.16x = 61,228.92 × 13,118
  4. Step 4: Simplify right side
    40,822.16x = 803,200,972.56
  5. Step 5: Solve for x
    x = 803,200,972.56/40,822.16
  6. Step 6: Final answer
    x = 19,675.61

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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.