Home / 20,146.38-30,228.81-9,055.98

Finding the Fourth Proportional to 20,146.38, 30,228.81 and 9,055.98

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Solution

The fourth proportional to 20,146.38, 30,228.81 and 9,055.98 is: 13,588.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.38 : 30,228.81 = 9,055.98 : x
  2. Step 2: Convert to fraction form
    20,146.38/30,228.81 = 9,055.98/x
  3. Step 3: Cross multiply
    20,146.38x = 30,228.81 × 9,055.98
  4. Step 4: Simplify right side
    20,146.38x = 273,751,498.78
  5. Step 5: Solve for x
    x = 273,751,498.78/20,146.38
  6. Step 6: Final answer
    x = 13,588.12

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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.