Home / 13,985.52-20,973.75-4,623.36

Finding the Fourth Proportional to 13,985.52, 20,973.75 and 4,623.36

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Solution

The fourth proportional to 13,985.52, 20,973.75 and 4,623.36 is: 6,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.52 : 20,973.75 = 4,623.36 : x
  2. Step 2: Convert to fraction form
    13,985.52/20,973.75 = 4,623.36/x
  3. Step 3: Cross multiply
    13,985.52x = 20,973.75 × 4,623.36
  4. Step 4: Simplify right side
    13,985.52x = 96,969,196.80
  5. Step 5: Solve for x
    x = 96,969,196.80/13,985.52
  6. Step 6: Final answer
    x = 6,933.54

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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.