Home / 30,201.56-45,256.14-12,661.82

Finding the Fourth Proportional to 30,201.56, 45,256.14 and 12,661.82

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Solution

The fourth proportional to 30,201.56, 45,256.14 and 12,661.82 is: 18,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.56 : 45,256.14 = 12,661.82 : x
  2. Step 2: Convert to fraction form
    30,201.56/45,256.14 = 12,661.82/x
  3. Step 3: Cross multiply
    30,201.56x = 45,256.14 × 12,661.82
  4. Step 4: Simplify right side
    30,201.56x = 573,025,098.57
  5. Step 5: Solve for x
    x = 573,025,098.57/30,201.56
  6. Step 6: Final answer
    x = 18,973.36

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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.