Home / 30,375.81-45,558.46-13,731.97

Finding the Fourth Proportional to 30,375.81, 45,558.46 and 13,731.97

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Solution

The fourth proportional to 30,375.81, 45,558.46 and 13,731.97 is: 20,595.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,375.81 : 45,558.46 = 13,731.97 : x
  2. Step 2: Convert to fraction form
    30,375.81/45,558.46 = 13,731.97/x
  3. Step 3: Cross multiply
    30,375.81x = 45,558.46 × 13,731.97
  4. Step 4: Simplify right side
    30,375.81x = 625,607,263.00
  5. Step 5: Solve for x
    x = 625,607,263.00/30,375.81
  6. Step 6: Final answer
    x = 20,595.58

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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.