Home / 30,353.34-45,535.49-13,721.21

Finding the Fourth Proportional to 30,353.34, 45,535.49 and 13,721.21

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Solution

The fourth proportional to 30,353.34, 45,535.49 and 13,721.21 is: 20,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,353.34 : 45,535.49 = 13,721.21 : x
  2. Step 2: Convert to fraction form
    30,353.34/45,535.49 = 13,721.21/x
  3. Step 3: Cross multiply
    30,353.34x = 45,535.49 × 13,721.21
  4. Step 4: Simplify right side
    30,353.34x = 624,802,020.74
  5. Step 5: Solve for x
    x = 624,802,020.74/30,353.34
  6. Step 6: Final answer
    x = 20,584.29

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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.