Home / 13,822.40-20,733.60-5,058.20

Finding the Fourth Proportional to 13,822.40, 20,733.60 and 5,058.20

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Solution

The fourth proportional to 13,822.40, 20,733.60 and 5,058.20 is: 7,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.40 : 20,733.60 = 5,058.20 : x
  2. Step 2: Convert to fraction form
    13,822.40/20,733.60 = 5,058.20/x
  3. Step 3: Cross multiply
    13,822.40x = 20,733.60 × 5,058.20
  4. Step 4: Simplify right side
    13,822.40x = 104,874,695.52
  5. Step 5: Solve for x
    x = 104,874,695.52/13,822.40
  6. Step 6: Final answer
    x = 7,587.30

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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.