Home / 20,732.48-28,611.49-11,779.45

Finding the Fourth Proportional to 20,732.48, 28,611.49 and 11,779.45

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Solution

The fourth proportional to 20,732.48, 28,611.49 and 11,779.45 is: 16,256.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.48 : 28,611.49 = 11,779.45 : x
  2. Step 2: Convert to fraction form
    20,732.48/28,611.49 = 11,779.45/x
  3. Step 3: Cross multiply
    20,732.48x = 28,611.49 × 11,779.45
  4. Step 4: Simplify right side
    20,732.48x = 337,027,615.88
  5. Step 5: Solve for x
    x = 337,027,615.88/20,732.48
  6. Step 6: Final answer
    x = 16,256.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.