Home / 30,103.25-45,126.93-11,117.39

Finding the Fourth Proportional to 30,103.25, 45,126.93 and 11,117.39

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Solution

The fourth proportional to 30,103.25, 45,126.93 and 11,117.39 is: 16,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.25 : 45,126.93 = 11,117.39 : x
  2. Step 2: Convert to fraction form
    30,103.25/45,126.93 = 11,117.39/x
  3. Step 3: Cross multiply
    30,103.25x = 45,126.93 × 11,117.39
  4. Step 4: Simplify right side
    30,103.25x = 501,693,680.31
  5. Step 5: Solve for x
    x = 501,693,680.31/30,103.25
  6. Step 6: Final answer
    x = 16,665.76

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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.