Home / 21,813.27-32,720.02-7,773.84

Finding the Fourth Proportional to 21,813.27, 32,720.02 and 7,773.84

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Solution

The fourth proportional to 21,813.27, 32,720.02 and 7,773.84 is: 11,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813.27 : 32,720.02 = 7,773.84 : x
  2. Step 2: Convert to fraction form
    21,813.27/32,720.02 = 7,773.84/x
  3. Step 3: Cross multiply
    21,813.27x = 32,720.02 × 7,773.84
  4. Step 4: Simplify right side
    21,813.27x = 254,360,180.84
  5. Step 5: Solve for x
    x = 254,360,180.84/21,813.27
  6. Step 6: Final answer
    x = 11,660.80

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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.