Home / 30,353.47-45,535.68-13,721.33

Finding the Fourth Proportional to 30,353.47, 45,535.68 and 13,721.33

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Solution

The fourth proportional to 30,353.47, 45,535.68 and 13,721.33 is: 20,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,353.47 : 45,535.68 = 13,721.33 : x
  2. Step 2: Convert to fraction form
    30,353.47/45,535.68 = 13,721.33/x
  3. Step 3: Cross multiply
    30,353.47x = 45,535.68 × 13,721.33
  4. Step 4: Simplify right side
    30,353.47x = 624,810,205.89
  5. Step 5: Solve for x
    x = 624,810,205.89/30,353.47
  6. Step 6: Final answer
    x = 20,584.48

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1.5x scale

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.