Home / 30,106.07-45,134.43-11,375.45

Finding the Fourth Proportional to 30,106.07, 45,134.43 and 11,375.45

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Solution

The fourth proportional to 30,106.07, 45,134.43 and 11,375.45 is: 17,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,106.07 : 45,134.43 = 11,375.45 : x
  2. Step 2: Convert to fraction form
    30,106.07/45,134.43 = 11,375.45/x
  3. Step 3: Cross multiply
    30,106.07x = 45,134.43 × 11,375.45
  4. Step 4: Simplify right side
    30,106.07x = 513,424,451.74
  5. Step 5: Solve for x
    x = 513,424,451.74/30,106.07
  6. Step 6: Final answer
    x = 17,053.85

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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.