Home / 21,625.48-32,423.82-7,772.68

Finding the Fourth Proportional to 21,625.48, 32,423.82 and 7,772.68

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Solution

The fourth proportional to 21,625.48, 32,423.82 and 7,772.68 is: 11,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.48 : 32,423.82 = 7,772.68 : x
  2. Step 2: Convert to fraction form
    21,625.48/32,423.82 = 7,772.68/x
  3. Step 3: Cross multiply
    21,625.48x = 32,423.82 × 7,772.68
  4. Step 4: Simplify right side
    21,625.48x = 252,019,977.24
  5. Step 5: Solve for x
    x = 252,019,977.24/21,625.48
  6. Step 6: Final answer
    x = 11,653.84

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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.