Home / 13,622.19-20,425.35-5,292.45

Finding the Fourth Proportional to 13,622.19, 20,425.35 and 5,292.45

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Solution

The fourth proportional to 13,622.19, 20,425.35 and 5,292.45 is: 7,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.19 : 20,425.35 = 5,292.45 : x
  2. Step 2: Convert to fraction form
    13,622.19/20,425.35 = 5,292.45/x
  3. Step 3: Cross multiply
    13,622.19x = 20,425.35 × 5,292.45
  4. Step 4: Simplify right side
    13,622.19x = 108,100,143.61
  5. Step 5: Solve for x
    x = 108,100,143.61/13,622.19
  6. Step 6: Final answer
    x = 7,935.59

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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.