Home / 30,628.43-45,881.13-13,965.54

Finding the Fourth Proportional to 30,628.43, 45,881.13 and 13,965.54

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Solution

The fourth proportional to 30,628.43, 45,881.13 and 13,965.54 is: 20,920.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,628.43 : 45,881.13 = 13,965.54 : x
  2. Step 2: Convert to fraction form
    30,628.43/45,881.13 = 13,965.54/x
  3. Step 3: Cross multiply
    30,628.43x = 45,881.13 × 13,965.54
  4. Step 4: Simplify right side
    30,628.43x = 640,754,756.26
  5. Step 5: Solve for x
    x = 640,754,756.26/30,628.43
  6. Step 6: Final answer
    x = 20,920.26

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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.