Home / 21,845.50-32,775.21-7,805.26

Finding the Fourth Proportional to 21,845.50, 32,775.21 and 7,805.26

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Solution

The fourth proportional to 21,845.50, 32,775.21 and 7,805.26 is: 11,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.50 : 32,775.21 = 7,805.26 : x
  2. Step 2: Convert to fraction form
    21,845.50/32,775.21 = 7,805.26/x
  3. Step 3: Cross multiply
    21,845.50x = 32,775.21 × 7,805.26
  4. Step 4: Simplify right side
    21,845.50x = 255,819,035.60
  5. Step 5: Solve for x
    x = 255,819,035.60/21,845.50
  6. Step 6: Final answer
    x = 11,710.38

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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.