Home / 21,232.59-31,852.72-8,745.80

Finding the Fourth Proportional to 21,232.59, 31,852.72 and 8,745.80

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Solution

The fourth proportional to 21,232.59, 31,852.72 and 8,745.80 is: 13,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.59 : 31,852.72 = 8,745.80 : x
  2. Step 2: Convert to fraction form
    21,232.59/31,852.72 = 8,745.80/x
  3. Step 3: Cross multiply
    21,232.59x = 31,852.72 × 8,745.80
  4. Step 4: Simplify right side
    21,232.59x = 278,577,395.22
  5. Step 5: Solve for x
    x = 278,577,395.22/21,232.59
  6. Step 6: Final answer
    x = 13,120.27

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1.5x scale

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.