Home / 21,774.50-32,674.22-11,779.57

Finding the Fourth Proportional to 21,774.50, 32,674.22 and 11,779.57

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Solution

The fourth proportional to 21,774.50, 32,674.22 and 11,779.57 is: 17,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,774.50 : 32,674.22 = 11,779.57 : x
  2. Step 2: Convert to fraction form
    21,774.50/32,674.22 = 11,779.57/x
  3. Step 3: Cross multiply
    21,774.50x = 32,674.22 × 11,779.57
  4. Step 4: Simplify right side
    21,774.50x = 384,888,261.69
  5. Step 5: Solve for x
    x = 384,888,261.69/21,774.50
  6. Step 6: Final answer
    x = 17,676.10

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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.