Home / 30,270.51-45,419.09-15,491.61

Finding the Fourth Proportional to 30,270.51, 45,419.09 and 15,491.61

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Solution

The fourth proportional to 30,270.51, 45,419.09 and 15,491.61 is: 23,244.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.51 : 45,419.09 = 15,491.61 : x
  2. Step 2: Convert to fraction form
    30,270.51/45,419.09 = 15,491.61/x
  3. Step 3: Cross multiply
    30,270.51x = 45,419.09 × 15,491.61
  4. Step 4: Simplify right side
    30,270.51x = 703,614,751.38
  5. Step 5: Solve for x
    x = 703,614,751.38/30,270.51
  6. Step 6: Final answer
    x = 23,244.23

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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.