Home / 28,792-43,118.34-13,964.20

Finding the Fourth Proportional to 28,792, 43,118.34 and 13,964.20

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Solution

The fourth proportional to 28,792, 43,118.34 and 13,964.20 is: 20,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,792 : 43,118.34 = 13,964.20 : x
  2. Step 2: Convert to fraction form
    28,792/43,118.34 = 13,964.20/x
  3. Step 3: Cross multiply
    28,792x = 43,118.34 × 13,964.20
  4. Step 4: Simplify right side
    28,792x = 602,113,123.43
  5. Step 5: Solve for x
    x = 602,113,123.43/28,792
  6. Step 6: Final answer
    x = 20,912.51

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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.