Home / 23,291.90-32,141.19-13,220.54

Finding the Fourth Proportional to 23,291.90, 32,141.19 and 13,220.54

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Solution

The fourth proportional to 23,291.90, 32,141.19 and 13,220.54 is: 18,243.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,291.90 : 32,141.19 = 13,220.54 : x
  2. Step 2: Convert to fraction form
    23,291.90/32,141.19 = 13,220.54/x
  3. Step 3: Cross multiply
    23,291.90x = 32,141.19 × 13,220.54
  4. Step 4: Simplify right side
    23,291.90x = 424,923,968.40
  5. Step 5: Solve for x
    x = 424,923,968.40/23,291.90
  6. Step 6: Final answer
    x = 18,243.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.